Browser bug lists

I have to give our test team some resources to spot different browser bugs. The client is one of those classic cases considering a web site only good when it looks the same on every outdated UA out there, and of course the main stakeholder uses IE5.0 on Windows NT.

The question is now, are there more up-to-date resources out there?

Currently I have:

• http://www.richinstyle.com/bugs/
• http://www.quirksmode.org/bugreports/
• http://www.positioniseverything.net/
• http://www.l-c-n.com/IE5tests/