Don't let the FrontPage reference put you off!
I use FrontPage as a simple means of FTP-ing my php pages up to my PAYH site, thats all.
At work i have a PN business broadband account, at home i have BBYW option 3. I know this is irrelevant since i am talking about PAYH but i thought i'd answer that question for you now.
When at work, i can merrily upload files all day long using FrontPage but at home it periodically refuse to send the file and just displays the file transfer box indefinately so i have to do it through Windows Explorer or the plesk control panel.
At home i've tried it from two different PC's, same result.
Is this a firewall issue and if so, what?