unable to view whole parent directory

[peca2000]

I am using v3.1.12 to transfer mp3 files from one of my computers to another along with serv-u v 6.0. My problem is that I can only see part of my parent directory (a-c) in the fxp window. Is there a setting that will allow me to view my whole mp3 directory from(a-Z). The parent directory is about 50 gigs worth. Any help will be appreciated thanks. Both computers are using windows xp, with linksys routers, no firewall and dsl connections.