Uninstall question

I have 1.4.4 installed. How does one uninstall it? Is there a uninstall excel, or should one go for a delete using the control panel? I ask because it appears I have Cyrillic texts in the files of other mods (i.e the UI of Stainless Steel). I'm not sure how this occured given each mod is in it's own folder.

Question two: one should uninstall earlier versions before attempting an install of version 1.5?

thanks

There is an uninstall exe file in mod folder, use it and then delete the rest manually.
Its generally better to do clean installation of 1.5, yes, however you can try to install 1.5 on top of 1.4.4 - someone suggested it to make the game more stable, but I have never tested it, so dunno. For me the clean 1.5 version is save enough.