Can Not See Files on the FTP

[tal3152]

Well I think this is a very unique problem and I hope to get some help. I am using FlashFXP v2.2 build 973 [BETA RELEASE] on Windows XP PRO.

Here is the problem: I can connect to the FTP via port 21 without a single problem, uploading and downloading, but there is an address on port 20 (same IP) that I can connect but CAN NOT sees the files. I did play with the settings and added port 20 to my firewall but no luck. I would appreciate any ideas on both sides (FTP & my computer).