Daytona Net Battle issue - PLZ HELP

[UltimatUnit]

Hi everyone. I am having problem getting the daytona net battle to work. I have ripped data from gdrom successfully and hacked the files to make it autoboot. The game now boots up ok and everything else works except for the net battle. I try clickin on it n game just resets. Please help... What do i need to do to make it work? Thanks.