1. if you are still blocked, delete the entries for the ashWebSv.exe, Web Shield in Outpost as I suggested and force it to ask again.
I have had this Outpost before that even though ashWebSv.exe was in my trusted applications it was still blocked.
2. The reason I asked for the names of those previous AVs is some are notorious for leaving stuff behind even after an uninstall ?
Personally I think the OP anti-spyware plug-in is poor (there are better) and I have had it disabled from the tests I did it is very noisy on boot opening lots of files for checking, this forces avast to first lock the file and scan it before handing back control and allowing OP-as to scan. This really hits boot durations.
However, I thought the OP Security Suite 2008 has a full blown AV, see image. It also scans email attachments I don't know if that will impact with the avast ashMaiSv.exe, I also don't know if the anti-spam might use a localhost proxy to check email and that too could impact the avast Internet Mail provider or at least cause double scanning of emails by avast.
This is the reason I won't be getting OP Security Suite, but keep the OP Firewall Pro and after a period of time I will upgrade to OP Firewall Pro 2008, I will leave it up to other guinea pigs to find any glitch/bugs, etc.