Delphi V1 and USB

Hi,

I hope someone can help me, I have developed and program for testing
modems. It uses 2 serial ports so you can test 2 modems with one
computer. I want to implement support for USB modems, but I don't know
where to start.

Is there a component (or some sample code) available for Delphi V1
that could get me started???

Thank You in advance
Robbie...