How to restore my downloads after re-installing BitComet

Hello All,

After my system HDD broke down, I had ot re-install the system(OS), incl. BitComet.
Now I want to restore all my downloads for seeding, but I am at a loss how to do it, please help.

BitComet version (newly installed) 1.34
OS Windows XP SP3 Home Edition; Windows firewall, Windows security Essentials;
Connection: LAN to apartment, then ASUS WL-500gPv2.

Thanks!