MUDFLAPPER  Thanks for mentioning the tip. I can't take the credit though. I think I may have learned about the fix on MacUpdate  
(Version 2.8.4)

::MILE::  If it's really that easy (and it may not be for the many people not as tech-savvy as many of you) it's actually a bit sad that the developer doesn't seem to bother providing a fixed version…!?

Especially since the fix only works if you already had PithHelmet installed before updating to Safari 4…! If you download it now and try to install it won‘t let you… :(((  
(Version 2.8.4)

GARY30  I think there is a readme file or other documentation that tells you where to put the SIMBL part,the pithhelmet.bundle and so forth manually. I personally feel that if something is free, then "Beggars can't be choosers." More power to him if he is sitting a beach somewhere enjoying life, or maybe he has a busy career. He'll get around to it--maybe.

You might be able to Google the info on manually installing the pieces or just make another post here if interested and I'll do my best to provide the instructions if you promise me that you won't complain if you see smoke pouring out of the machine after following them. I am an experienced user and troubleshooter, but not a true geek.  
(Version 2.8.4)

::MILE::  Sorry, but just how is a 10$ shareware considered "free"…?!

Many of us have actually payed the mentioned shareware fee and are understandably disappointed with the lack of support by the developer…! Especially when fixing the problem and submitting a new version would probably take him less than 15 minutes…

I appreaciate your offer though, but I guess I'll just give up on PithHelmet and look out for some kind of replacement -- thanks anyway…! :)  
(Version 2.8.4)

CHAWKNZ  How to we even install it if Safari 4 is the current browser?  
(Version 2.8.4)

GARY30  To Mile--Oops, it has been so many years I sent a donation (I think it was donationware before it was shareware--can't tell from the old receipt) I forgot it was paid. I guess you can feel free to go ahead and hector the man to your heart's content to cost justify your full $10 US investment.

To Chawknz--There is a "ReadMe.html" that will get you going. You need to download and unpack the Pithhelmet 2.8.4 tbz file and the ReadMe.html is right there.  
(Version 2.8.4)

::MILE::  @GARY30: That's definitely not what I meant -- I'm not going to hector the dev or assault him verbally or anything…! I'm just disappointed, that's all…

Also it's not about the ten bucks, I don't really care about that -- it's just about the lack of commitment to his product and the lack of communication with his customers…! Wouldn't matter if the app were free or if he charged a chunk of money for it…

As I said, just disappointed… :(((  
(Version 2.8.4)

FRANKHOGG  Perhaps you could be so kind as to explain how to do that in a little more detail. Thanks  
(Version 2.8.4)

FRANKHOGG  Never mind, I found the answer below in the comment to KITMOS.  
(Version 2.8.4)

MUDFLAPPER  That stinks. I've contacted the developer in the past and have received prompt responses. Maybe your emails are being incorrectly flagged as spam? Have you tried emailing him from a different email account?  
(Version 2.8.4)

KITMOS  I did eventually hear back from him but still don't have a resolution as to why PH won't load. He tells me to delete Safari's prefs but this never lasts long.

Part of the problem seems to be he has a email response that requires you to use a ''special'' email address but he doesn't seem to get my emails on that acct.

For the moment I've given up on it and am going to look at GlimmerBlocker as it doesn't have to be changed with every update to Safari.   
(Version 2.8.4)

MUDFLAPPER  I found a temp fix for the Safari 4/PithHelmet incompatibility. I tried it and everything seems to be working a-ok, so far.

1) Quit Safari

2) Navigate to Library/Application Support/SIMBL/Plugins/PithHelmet.bundle

3) Right click on PithHelmet.bundle and select Show Package Contents

4) Inside the Contents folder, load Info.plist into TextEdit

5) Scroll to the bottom of the file

6) Find "MaxBundleVersionXXXX" (The XXXX will actually be the current version number, probably 5-something)

7) Replace the current version number (XXXX) with "5528"

8) Restart Safari  
(Version 2.8.4)

MUDFLAPPER  I completely agree. I've tried all the Safari ad blockers and Pithhelmet is still my favorite. It just works. Plus, you can customize the level of ad blocking by site or domain. Better yet, you can easily reload a page, sans ad blocking, with a simple key command or click of the mouse.

I've been using PH for years. I donated a long time ago, and it was worth every single cent.  
(Version 2.8.4)

LITLJOHN  Working great here on OS X 10.4.11 & Safari 3.2.1... 800X2 PPC G4 - thanks Mike!!  
(Version 2.8.4)

SJK  it's reasonable for anyone who's paid for PH to be a bit frustrated not getting any status report from the developer by now. For me all the alternatives are inferior.  
(Version 2.8.3a)