tiny firewall and ftp

tiny firewall is playing silly buggers with my ftp transfers.

uploads from dreamweaver are stopped at 65,535 bytes religiously

for some reason it let me upload an 80k file with my ftp prog BUT
downloads have been stopped at varying stages of completion; 52k, 56k, 64k, 72k.

took me a while to figure out what was going on. -if I disable the firewall part of tiny the transfers can complete no problems.

how can I tell tiny to leave the ftp alone?

(pro 6.5.126)