I can't manage to run my arduino on Vista.

I Just got my arduino form the mail, plugged it in my computer followd the instruction given on Aruino.cc, i'm saldy "a Pc living with vista" to quote the apple Ad, and I cannot install driver manually, I plugged my arduino in my pc, a "new hardware found"popped, it searched the drivers automatically, "succesfully" installed them, then, nothing. I can't do anything.

Btw, yes the arduino program is installed.

Also, I have Ubuntu in dual boot but I'm pretty much new to it.