We only discuss the older FrostWire 4 version on this forum because it used the Gnutella network. FrostWire 5 and 6 are torrent only versions. I'd suggest you re-post your question here:
FrostWire Community Forums • Index page
If you were using FrostWire 4, then there's a number of 3rd party host sites for downloading the program. (Problem with 3rd party host sites however is they often advertise downloads to other things which makes it confusing for people.)