O.K. Erik, you've killed the bad .dll now we can clean up:

Download, update and run
CWShredder
Click Fix, don't just scan. Let it fix everything it asks about.

Next please download and run the following :

1) SpyBot Search and Destroy
After installing SpyBot Search & Destroy, first press Online, and search for, put a check mark at, and install all updates.
Next, close all Internet Explorer windows, hit 'Check for Problems', have SpyBot remove all the items it marks in red.

2) Ad-Aware
After installing Ad-Aware, and before running the program, first press “check for updates now".
Click "Connect" and install all updated components available. Click 'Finish'.
Press "Scan Now", then 'next', and let Ad-Aware scan your drives.
It will find a number of "bad" files and registry keys. Click 'Next' again.
Check all found items, and click 'next' once more.
It will ask you whether you'd like to remove all checked items. Click OK.

Always reboot the computer between each program - both of these may find things that they need to have a reboot of the machine to clear - please reboot and let them finish.

Post another HijackThis log back here and we'll get rid of the last bits, you're nearly there.