I Need Help, Main Quest Options

[1234king]

O.K. im in the ushiluku ancestrial tomb or w/e but i cant find the bonebiter bow and im at the very end of the tomb

[Renee]

I think I need help. Not about the main quest, though.

I installed an alternate start mod, began rolling a character, all good so far. Got to the part when it asked which Starsign I'd like to select, so I chose Tower I think. But that's as far as I could get. There was no way to confirm this. No 'OK' button.

Screw that mod, that mod is history! Don't really need an alternate start really, do we? Not like there's a whole lot of tutorial for MW right? Doesn't take much time to start somebody new. I was really interested in starting from a different location. Not something I really need, though.

So the mod is gone. Back to Seyda Neen, staring at the first Dunmer in the game. Started somebody new. Gave her a name. Got outside the boat and picked a race, picked hair and face. Get inside the Census Office. Picked a Class. Got to the Starsign page. Picked Tower. But again, there was no way to confirm this. There was no OK button!

Obviously that mod screwed something up in the base game. Answer seems to be to Install the base game from scratch, right? Straight from the disc. Except when start to do this it says something which made it sound like installing would get rid of any Morrowind material on my gaming computer. I forget exactly what it said (I'm at work right now) but there was a message which made it sound like installing would uninstall everything else present Morrowind-related. So I just STOPPED right there.

I can't remember how this works. If I've got MW installed in a particular folder and want to reinstall, I can't just choose to do so in another folder, can I?