Damn cron issues :(

[digifan]

I wanted to launch a tgp yesterday with smart thumbs5 and arrowtrader lite3 installed, 1000 galleries in the database, nice big thumbs, I was adding trades and all my thumbs disappeared in a heart beat.
The smart thumbs people have their birthday party and I am clueless here, must be some cron issue.
The at3 should show all hits in the main stats area but it doesn't.
Smartthumbs should update in every 2 seconds but it stopped.
General settings read:
"Manual index rotation
Clicks to index thumbs refresh:
391 2006-02-26 23:16:01"
Help file:
"Clicks to index thumbs refresh
# Count of clicks which you need reach for thumbs autorotation. This number is updated with cron. If you do not see that this number is decreasing every 2-minute then cron is not properly working and you have to check cron settings.
# Date show you when was done last rotation."

I have no idea where to check the cron settings, it is my first script. I must go back to the clinic soon.. any suggestions?