What ye may need to do is redownloading the map. It could very well be a corrupted file that is hindering the map portal to appear in Cape. Also, make sure ye account for .fhm, .fho, .fhs, and et cetera, but I believe these are the main files {and only, since I can't seem to think of any other FH exported map files that should be needed} that ye'll need to place in exports. Also, for y'er sound, if 'tis a MP3 file, do not place it in the sounds folder, but the music folder. The music will not play otherwise.
If what I 'ave said doesn't fix y'er issues, is the map that ye downloaded public? If so, might I 'ave the link so I may test it f'er m'self? 'Twould help me be able to identify the issue at hand.