Ouch! That’s a big subject!
You can use FrontPge to create webpages that run on “standard” servers, but it was designed to create pages that require MSft servers, or extensions. Last time I checked, DH will install FrontP*ge extensions on your account, but they cripple other functions normally available on your account, and they really just don’t work very well in a modern hosting environment. You can “turn on” these extension from within your Control Panel, but I think you should read the rest of this post before you do so.
If you used anything that requires any Msft specific stuff, that stuff will not work on a non-MS server unless what are called "FrontPge" extensions are installed. If you avoided the use of such things, and just built a site in FrontP*ge using standard HTML, these extensions are not needed, and what I just described will work fine.
If you are just learning how to do this, I can not advise you strongly enough to not use FrontPage. That product is no longer being developed by Ms*ft (search the web, or these forums, or the DH wiki for more info on that), and support for it’s specific features is spotty, at best, on any server other than an “windows” server (DH uses Debian Linux).
Similar, but much better (and standard) tools for creating webpages in a WYSIWYG way, are KompoZer and NVU.
Both are “free software”, both in “free beer” and “free as in freedom”, produce reasonably valid HTML (much better than FrontPage), and produce code that will work portably across a wide range of web servers.
I’m sorry, I just can’t help you with FrontPage (I used it for a couple of years in the late 90’s), as using it properly in conjunction with an apache webserver, requires an elemental understanding of how webpages are assembled and how they are served.
There are many tutorials out there that discuss all of this, and I’m happy to answer a specific question if you run into trouble, but I’m just not up for trying to explain how to use FrontPage on a non-Ms*oft server.
If you are just learning, please consider learning “current”, and “standard” technology - it is no harder to learn, but you can use that knowledge anywhere. You will find it increasingly harder to use “FrontP*ge learning” as time goes on; you’ll end up having to learn how to do it the “right way” soon enough anyway.