i only play the PC version, but i understand that the console versions are much the same.
Anyway, when you start the game your asked what class do you want to be and birthsign etc....just pick create custom class and you get to pick your major skills and favoured attributes and name that class. This then brings you back to the class selection screen but the list now contains your custom class, pick it and then your set to go
I believe its impossible because no matter what race and major skills you pick...there is no way to get to level 100...then again you can use mods...
What exactly is your question? Yes, Oblivion has an Xbox 360 version, if that was what you meant.
You can play it while signed into xbox live, but you cant play with other people through xbox live on oblivion.
Oblivion can either be for the XBOX 360, or for your computer.
no
no
no
No, oblivion only comes for PS3, PC and Xbox 360.
Not possible
No you can't
No, the file types such as meshes and so one are not the right format for your xbox to read.
Unfortunatly, Oblivion is not multiplayer (at all) online, but you can download extras for the base game off the marketplace.