There are countless posts on this forum describing how to transfer files from a PC to an Amiga, so have a search. Searching for "crossdos" would be a good start. If you really can't find it then come back and ask again, but it's good manners to search first :-)
There's no need to by TUDE or ReloKick, they're freeware. Once you've got a method of getting them from a PC to an Amiga you'll be on your way.
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moto