WAHA.06X36  The update you want is OS X 10.5.2. This was caused by an Apple bug, and they finally fixed it.  
(Version 2.0)

WAHA.06X36  That simply isn't true. The Unarchiver does not take over any file types on its own unless you explicitly select them in the file format list.

HOWEVER, OS X itself may select The Unarchiver as a default app for various formats. The Unarchiver itself has no control over this.  
(Version 1.6)

WAHA.06X36  This is essentially an OS X bug. There is nothing that can be done about it.

To work around, reassing filetypes with the finder (Get Info -> Change All)  
(Version 2.0)

WAHA.06X36  There is no documentation available for the SITX format, so nobody can add support for it. I'd really like to add it, but until somebody reverse engineers it, it won't happen.  
(Version 1.6)

WAHA.06X36  It's still there. You just have to it in two steps instead of one. Rotate the image, then save. It defaults to saving losslessly.  
(Version 2.0)

WAHA.06X36  It should extract all .tar.gz files just fine. If there is a problem, report it on http://code.google.com/p/unarchiver/issues/list.

It is more likely a problem with a single file, so provide a copy of it if you can.  
(Version 1.6)

WAHA.06X36  There is nothing that needs quitting. The program quits when it is not used.  
(Version 1.6)

WAHA.06X36  The problem is that some .001 files ARE rar files, so I have to include them in the list if people want to open them. Anyway, it would be better if you reported bugs on the Google Code bug tracker or on the message board on the site. I don't check posts here very often. Both are linked from the homepage.  
(Version 1.6)

WAHA.06X36  If it was as easy as adding it to the list, I would, but SITX is entirely undocumented and nobody has reverse engineered it. So unless somebody does, it won't work anytime soon, unfortunately.  
(Version 1.6)

WAHA.06X36  Don't worry, it will only ever be an option, and it won't be the default. I prefer the current behaviour too, which is why I implemented it in the first place.  
(Version 1.6)

WAHA.06X36  No, but I'll try doing that now.  
(Version 1.6)

WAHA.06X36  This is my favourite review yet.

(Sigh, I am tired of the MacUpdate bug that misfiles your replies if you log in at the same time that you post it.)  
(Version 1.6)

WAHA.06X36  This is planned, I just haven't gotten around to it.  
(Version 1.6)

WAHA.06X36  Um, it does have icons for each format, except for the most obscure ones?  
(Version 1.4)

WAHA.06X36  ACE 2 is a propietary and undocumented format, thus no support is possible until someone reverse-engineers it.  
(Version 1.3)

WAHA.06X36  Empty your trash.  
(Version 1.3)

WAHA.06X36  It will not open anything unless you tell it to. Tar archives inside gzip files, and sit archives inside bin and hqx files are extracted directly without intermediate extraction and opening.  
(Version 1.2)

WAHA.06X36  Yes, sorry, I accidentially released a broken version. I should now be fixed, so try downloading again.  
(Version 1.2j)

WAHA.06X36  Whoops, you are entirely correct, the file was corrupted. I have updated it, so try to download it again!  
(Version 1.2j)

WAHA.06X36  Known problem, fixed in the development version. 1.2 should come out soon, and that will have the fix.  
(Version 1.1)

WAHA.06X36  Well, considering that there is no code in it to open files at all, I guess so.  
(Version 1.0)

WAHA.06X36  This is a known bug, and it will be fixed in the next version.  
(Version 1.0)

WAHA.06X36  http://macupdate.com/info.php/id/22774  
(Version 10.0.2)

WAHA.06X36  I can look into that problem, if you can provide example files and a description of the problem. See the homepage for my mail address.  
(Version 1.0)

WAHA.06X36  StuffIt forks should work. If you have an archive where they don't, please send it to me and I will look at it. I don't think I've seen a tar file with resource forks, so send that too if you have it.

You can find my email at http://wakaba.c3.cx/.  
(Version 1.0)

WAHA.06X36  It works with passwords-protected archives of *some* formats. Zip works, Rar doesn't.

SITX doesn't work, as it's completely undocumented and has never been reverse engineered that I know of.  
(Version 1.0)

WAHA.06X36  It is good, then, that you can do just that in the settings.  
(Version 1.4)

WAHA.06X36  Ah yes, I see. I'll try to have it fixed in the next version.  
(Version 1.0)

WAHA.06X36  I don't have a 10.3 machine, so I haven't been able to test it. Could you open up /Applications/Utilities/Console.app and tell me what it says about the crash?  
(Version 1.0)

WAHA.06X36  It does say "Platform: PPC". No Intel version will be forthcoming until I have a machine to test it on.  
(Version 1.2.1)

WAHA.06X36  The lower-quality scaling is due to using OpenGL and not Cocoa to draw images. It's non-trivial to get higher-quality scaling, but I've got some ideas for that. We'll see.

PDF reading is not easily implemented, as this is strictly a bitmap image viewer, and it would require rendering the PDF to a bitmap and then displaying that, which would waste memory and not work very well, especially not when zooming. Since it would be half-assed, I've decided to leave that up to programs that can do it better for now, unless I have some brilliant idea.

Printing might get implemented later, depending on how much trickery it will take.  
(Version 1.2.1)

WAHA.06X36  As I mentioned earlier, I didn't see the need for thumbnails, since OS X can do those itself.  
(Version 1.2.1)

WAHA.06X36  I've tried my best to work around features that are in 10.4 but aremissing in 10.3, but I don't have an actual 10.3 machine to test on, so there might still be some incompatiblities in there.

If you to help out, you can open up /Applications/Utilities/Console.app and look for any error messages from Xee, and post them here or at http://wakaba.c3.cx/sup/kareha.pl/1122405906/ , and I'll try to see if it's something I can fix.

iPhoto not showing up is probably because iPhoto doesn't register itself as an editor for image files. I could possibly make an option to include all programs that can open a file, and not just editors, though.  
(Version 1.2)

WAHA.06X36  Screensavers live in Library/Screen Savers, either in your home directory or on the main drive root.

Also see this: http://wakaba.c3.cx/sup/kareha.pl/1118971388/89  
(Version 1.3)

WAHA.06X36  I didn't see a need to add a thumbnail view when OS X can do that just as well itself.  
(Version 1.1)