Okay Guys this is what i did

1. Ran Universal installer - and deinstalled everything.
2. Deleted the Oracle Folder
3. Regedit. HKLM->System->CurrentControlSet->services -> and deleted Oracle services!
After this Everything associated with Oracle is deleted.
And now i am running a fresh installation and it is running smooth!

Thanx for the help once again.

Oh yes one more thing if i create a new user and give him rights can or can't i logon with the user in SQL+?
If i can how?