When you report bugs, it's customary to tag on "at this time, in this location". One could use the Traceroute command in the Terminal and see every hop between you and Ecomodder's servers.
Or maybe vBulletin doesn't like you.
I watched both. The articulated skirts aren't my favorite part, I'd prefer four-barred up and down. I understand why they hinged at the front, the rear four-bars could be longer than the front to get
the same a similar effect.
I like the underbody and bobbed rear fenders. Reminds me of this: