I have just purchased one EVDO modem and opted for the 750 UL Plan. My download speed when using Internet Download Manger is about 60 KBps. But when I try to upload using Filezilla the speed is nearly 8-10 KBps and there are frequent disconnections. How can I improve upload speed? I need at least 30 KBps. I use Windows 7 (32-bit) or Windows Vista (64-bit).