My system Windows 7 64-Bit now shows me not only 2 Version of "Adblock Plus for IE" installed, the old version 1.1 plus the new version (which should be listed as 1.2) and even worse... this new version is shown as Version 99.9.
I have the same issue here on two different computers. So it seems to be something like a "late night bug", isn't it

Cheers