Again, sorry if this is a remedial question

When upgraded versions are installed any mods we had would have to be reinstalled as well?

Also, back-up games would have to be backed-up again?

Thanks

The install should overwrite all the graphics in the images folder, so you would have to back up your images again after the install and reinstall any mods. I think that before reinstalling the mod, though, you should check that the mod is compatible with the latest versions, as some changes were made so the mods might not display correctly.

You shouldn't need to backup games you've already backed up, but if you're worried additional backups can't hurt.