A few examples of dead/wrong links:
On the page
http://www.photopost.com/class/sites...ieds/index.php the links Admin demo and Sites in Action are dead. The link Purchase opens in the wrong frame so you cannot see the contents properly.
The page
http://www.photopost.com/action/index.php which features sites in action has dead images. The same applies when you click on any of the categories to see a list of sites. Not to mention that several sites from the list are no longer in existance. I know they are not a part of your webpage but it doesn't require much effort to check if all of them are still active, let's say on a monthly basis.
These are just a few mistakes I noticed during my first visit. I would expect a more up to date website from a company which sells software especially since most potential customers probably click on the link sites in action to see how the software even operates.
From reading the forum, I understand that there used to be a demo version of the Classifieds available (the dead link is probably left from those days). Since it has been removed, I get the impression that someone didn't bother fixing it and simply removed the link.
On the forum, when a visitor goes to the Suggestions sub-forum, he can see a sticky topic about Classifieds 2.5 Beta 1 being released. Then he goes to the Installation & Upgrades sub-forum and see another sticky about Classifieds 2.6 being released. Announcements should be in one sub-forum or old ones should be deleted alltogether.
What is even worse is that on the main Classifieds page
http://www.photopost.com/class/ it says that version 2.0 has been released (from the forum I understand 2.6 is the latest) and points to a post on the forum from 2004!
I don't want to be over critical but I get the impression things are not that well organized but simply there to provide the minimum that is required. That is why I have a few concerns about the security as well. The latest version 2.6 has been available from December 2006 from what I understand. Most programs I use issue new versions with bug and security fixes. It strikes me as odd that Photopost does not do the same. Hackers sooner or later find a security hole so staying up to date with security patches is essential. How does Photopost take care of this problem?