I recently installed both Oblivion and the Shivering Isles on my Windows 7 64-bit computer. Oblivion was a bit dodgy to start with (for some reason it kept crashing when I fast travelled to Cheydinal on a Dark Brotherhood quest) but has settled down now, and Shivering Isles installed without a hitch.
However, I downloaded the OOO mod, hearing it was a good one, and after trying to extract it to my Oblivion data file, it whined at me, saying "it is not a supported archive."
In this scenario would the OBMM or Wyre Bash programme help?
Thanks in advance, any help would be greatly appreciated.