N70 and problems getting the isync agent to the phone

Please! In my work I must be able to sync the most important information. I had a Nokia 6630 which worked flawlessly with the isync. Now I have OSX 10.4.7, isync 2.3 and a new Noika 70. The problem is that I can't get the isync agent to my phone. The phone just want to use the "build-in" Nokia Suite sync function... Please anybody, HELP!

Mac Powerbook G4 867MHz Mac OS X (10.4.7)