[andrewas]

I think you will have to reinstall SoA (If it runs you might be OK, but I know ToB uninstall does damage SoA and I dont know specificaly how, so I make no garauntees either way. Its always safer to do the install from scratch though) and then install ToB.

If the installer tries to claim SoA or ToB are already installed when they arent, you can run setup.exe straight from the CD and that should work.