Hi Jenny,
Weekends are the high-listing periods at eBay, and that does seem to slow-down the cutover process (not the best time to cut). I've seen Jeff (CEO at Auctiva) and others advise patience, as it does take time to pull update and then go back to eBay for the security check.
Do you have alot of Active listings on eBay, like a Store? If so, are some/any disappearing at this point? Don't panic if they are, as that's the process of assimilation at work.
You might want to double-check both your eBay and Auctiva accounts to make sure the "Token" was accepted and good. Look for that at Autiva in your My Acoount - eBay Account Information for Valid Token. Look for that at eBay in your My Account - Site Preferences - Third-party authorizations (under General Preferences heading) and it should show Auctiva Corporation with (created "date").
Danno