Fix my FormMail.cgi

We have a very old site which referenced FormMail (i think Tom's script) for various items/pages. Sometime around the 20th of June [login to view URL] disappeared from our host. No explanation, and no clue what happened. That's why I'm here. The easiest solution is to reinstall [login to view URL], and assure the path is exactly as it is in the existing code. The actual path appears to be some sort of virtual path, because the folder it's pointing to doesn't exist either. I read through the setup of FormMail, which didn't seem too terribly complicated for someone that knows exactly what they're doing. However, I've never done it before, so I don't want to attempt the remedy myself. My knowledge is limited.