That can indeed be frustrating, but it is not the result of not having Fr*ntPage extensions installed on the DreamHost server.
Adding FrntPage extensions to your server won’t fix that problem; the problem is more related to the messed up way most Micrsoft products handle cut-n-paste when they think there is html involved.
Where are you “copying” from (what application) before you “paste”? Often you will find that you need to “copy as plain text” and “paste” unformatted" or “paste special” when dealing with FrontPage.
I abandoned my “tolerate-hate” relationship with Fr*ntPage years ago (actually, I guess it got to be more of a “hate-hate” relationship), but if I recall correctly, you can minimize that problem with judicious use of the copy and paste “special” options. Good Luck!