After the outage last Friday we also experienced some trouble with the latest SRCDS server update for CS:S.
Valve decided to move CS:S from the orangebox to its own subdirectory which broke our main SRCTV shell script.
After a fruitless reinstallation of our source gameservers we simply had to fix that shell script to get it back working.
CS:S matches should be bookable again.
We'll keep an extra eye on any glitches which may appear with the latest update.