Regarding PPC traffic to your auctionads sites...from what I am reading you guys are adding in an unnecessary step, and losing out on commissions. Basically you guys are doing:
1) User click your PPC ad for red widgets and land on your site with auctionads, which shows red widget auctions
2) User clicks on an auctionad for a red widget
3) User either signs up and becomes "active" or makes a bid or BIN
4) You get commission from auctionads
When you SHOULD be doing:
1) User clicks your PPC ad for red widget, and lands ON EBAY'S site showing red widgets
2) User either signs up and becomes "active" or makes a bid or BIN
3) You get commission from COMMISSION JUNCTION, because that is where ebay is an affilate with
AuctionAds appears to simply be a middleman. eBay uses commission junction (
Commission Junction - A global leader in the online advertising channels of affiliate marketing and managed search.) for their affiliate program. You should be signed up at commission junction and be an affiliate with ebay, not get paid through auctionads.