Here's the new download link (since all the download links on his site just point to the purchase page): http://www.acquisitionx.com/dmg.php

SpamSieve has been updated to version 2.7.5. This is a free update that includes the following changes:

Made various accuracy improvements.
Fixed a problem where Apple Mail (running on pre-release versions of Mac OS X 10.6) could freeze at launch if you had a rule involving address book groups.
Rewrote the Setting up a Spam Filtering Drone instructions.
Added Why does the Spam mailbox appear empty when there's a number beside it? to the frequently asked questions.
Updated the Automatically Deleting Old Spam Messages instructions to include Entourage.
The search fields are now scrollable.
The Apple Mail plug-in is better at detecting when SpamSieve's Dock icon is hidden.
Worked around a problem where Mail could crash if you had installed two copies of the SpamSieve plug-in at the same time.
Fixed a bug that could cause SpamSieve to freeze when applying a whitelist/blocklist rule involving certain regular expressions.
The crash reporter works better with pre-release versions of Mac OS X 10.6 (Snow Leopard).
Fixed a bug that could prevent SpamSieve from launching.
Updated the Dutch, Japanese, and Korean localizations.

http://c-command.com/blog/2009/07/29/spamsieve-275/

Can someone tell me what an "HM printer" is?

Thanks

Can 3.7b2 be downloaded from Unsanity's web site? I couldn't find it anywhere.