Cable problems !

Hi,

i just got my cable for my nokia 3510i but i think i've been set up :/

on the cable it says for nokia 3510 and when the cable is connected i can't get nothing to work
ive tried the logo manager link test program and with the mbus test it passed 100% but with fbus it didn't + there's no option for an mbus cable in mobimb :/

it seems if i press on the cable thing and do the tests again both mbus & fbus test goto 100% (somtimes lower) but i can't get that mobimb thing to work with the phone