I am also experiencing this exact same error when operating using the WAMP server. I am using Joomla 1.0.4 with JoomlaBoard forum 1.1.0, uddeim messaging v0.4e and community builder rc2.
funny thing is ... I had previously installed the same components without problem when using the JSAS server on a memory stick ...
WAMP 5
Apache 1.3.33
PHP 5.1.1
MySQL 5.0.16-nt
JSAS 1.0.3
Apache 2.0.54
PHP 4.4.0
MySQL 4.1.14
I have a little time on my hands today so am going to re-install JSAS on the memory stick and see if I can get the test site running again. [some overzealous editing and tweaking when trying to install standalone chatroom and gallery components killed my previous installation !]
Sorry - I am a novice when it comes to PHP/mySQL etc so I have no idea what the solution is, but i know the versions installed as part of the JSAS package solved the problem for me ...
I'll try using jsas, but still, I'd like to see it running on WAMP5. Did you use the Beta version of JSAS or is there only a Beta version available?
Please keep this post updated!
Thanks!