Can anyone tell me:

1) Does the templating system require Postgres 7.1? (I'm currently on 7.0.3)

2) Does the ATS database api code need to be modified? (This seems to be blowing up on me, and there has been some hint at it in previous posts.)

After I first installed the ATS, according to what instructions I could find, when I restarted my server it would no longer serve up any pages. I traced the problem back to the new ad_parameter procedure in the ATS tcl library, which evidently takes a different number of arguments than the original. When I compared the code to the standard OpenACS version of the same procedure they were too dissimilar for me to try to reconcile the functionality into one procedure. So I renamed the ATS verion "ats_parameter" and changed the calls in the rest of the ATS code accordingly. This got me to at least partial functionality.

When I try running the demo a few of the examples work, mainly the ones that only use basic formatting in the templates. However, all the examples that use the database api throw various errors.

Does this sound familiar to anyone? Any help would be greatly appreciated. Thanks.

The only sections I added in my nsd.tcl for the ATS are the ones that were in the file in the /etc directory of Vlad's tarball.  I couldn't find any other documentation of additional parameters that needed to be set up.