Thanks.
Or are you trying to make-do with a single-domain hosting account and two domain names?
If you're trying to do this:
example2.com -> example.com/some/path
You will have to use a "masked forward". OK for hobby sites where you don't care about SEO, but otherwise I wouldn't recommend it. It's not a "real" forward.
A "masked forward" is really a web site that frames your content.