Cute Dead Guys is your web destination for exactly that: pictures of dead men that you find attractive. Whether you're looking for pictures of hunks who died hanging themselves or just want to debate what will happen to necrophiliacs once human beings inevitably reach immortality this is the website for you.
Oblivion Mod Manager (a.k.a. OBMM Oblivion Mod Manager) is the fantastic work of Timeslip. Not only can you install and organize mods, but also you can organize your load order and implement multiple types of archive invalidation, with ease.
If what you downloaded is a file with the extension .omod, you need Oblivion Mod Manager (OBMM) to install it. With OBMM installed, you can simply double-click this .omod file from wherever it is in Windows Explorer, which will open OBMM and place the mod in the list on the right-hand pane of OBMM.