Dear 1dude1, terminal does make things easier because errors from Wine go directly to console and are immediately posted here.
Markitos: go to ~/.wine/drive_c (it's because of dot you didn't see wine folder). Check what is the path to executable of installed bitcomet. I assume i will be "Program Files/BitComet/BitComet.exe" - if not (very likely) change obvious changes. Type
wine "C:\\Program Files\\BitComet\\BitComet.exe"
check the case of letters - it must match path you'll find. Or go to winecfg and create a drive (say, b
which will refer to /home/user/.wine/drive_c/Program Files/BitComet . Then type
(Or however executable is named).