For accurate information, Adam would be your best bet on these forums. Otherwise, Tara Bills is the convention coordinator for CGL and can be found through the CGL website.
Here is the publicly available info from GC Indy, which I'm sure you have:
For the Booth position, per the GenCon site they are in
booths 1303 and 1307. By my recollection it is about the same location. From the main doors, take 15 steps forward and go five rows to your right. There is the Upper Deck area, one booth, and then the CGL section.
According to the Event Catalog:
Catalyst Game Labs: Shadowrun, BattleTech, Eclipse Phase and more!This seminar discusses the goings-on of Catalyst Game Labs in general, and especially its new games. Meet developers and writers, and ask them your questions directly.
2008-08-16 12:00 to 13:00
Embassy Suites--Chancellor 3
and
Shadowrun Q&A: Countdown to the 20th anniversary!Find out the latest developements and plans for Shadowrun, as we get ready for its 20th year! Meet developers and writers, and ask them your questions directly.
2008-08-16 13:00 to 14:00
Embassy Suites--Coronation II
and (for completeness)
BattleTech Q&A: 25 years of Heavy Metal Mayhem!Find out the latest developements and plans for BattleTech! Meet with developers and writers, and ask them your questions directly.
2008-08-16 14:00 to 15:00
Embassy Suites--Chancellor 3
Something tells me that Loren, Peter et al will be making arrangements for one person to start the next panel while the previous one wraps up.