JQuery :: Superfish Works Locally - But Not On My Webserver

For the life of me, I can't figure this one out. I've never had such an issue in the past and cannot find anything through a google search - and that's very rare for me.

So here's the technical nitty-gritty details:

I'm using jQuery hosted on [url]

I'm using the superfish drop-down menu and (at the moment) the default CSS, even if it doesn't integrate at all with my design

I'm also using "supersubs" to make the menu items larger

I'm building the menu through jquery by reading an XML through ajax. So I know jQuery works.

Everything is a-ok on 2 computers when viewed through either Firefox, IE or Chrome (even though it looks ugly in IE - didn't tweak it yet)

But, when I send the files through FTP to my host, it simply does not work. Neither my menu built through jQuery nor superfish or supersubs works. I don't get any sort of errors (normally, IE is helpful in pointing out javascript errors, but there's nothing this time).

The searches I did *had* results, but they were either about doing cross-domain ajax (which I'm not) or about javascript files not being served properly on the webserver. Knowing this server, that's most likely not an issue. I'mtransferringfiles using FileZilla, which also (I think) rules out transfer issues.

The URL: [url]