I noticed the o-tracker was going crazy too. As far as I know it's just a branded version of sellathon for Overstock. Prolly the underlying database structure etc. is the same for all of the versions they have - they just brand it differently and code it to match the look and feel of the various sites.
So maybe as Marty said earlier when they get the main engine worked out the rest will be working trouble free also. I'm not sure about the paid version of o-tracker for Overstock as I haven't signed up for it. Didn't want to spend the money for it as I was getting enough info from the freebie version.