USBmod problem?

[LiqwidisT]

Hey guys.. this is extremely frustrating. This is probably a stupid question, but I just wanna make sure? I have a usbmod with GS2 v2 (what they sent w/ it). I connected the 1-wire and closed it up. It won't load backups for either of my ps2/ps1 games? It won't even bring up the GS2 PS1 disc. It just brings up the red screen asking for ps2 format disc?? Did I just not connect it right, or is there more? I know I put it on the right points tho??? Also, the top USB slot only activates the mod if it's in about half-way? ne1 know the boot method for usbmod & gs2 v2? This is drivin me crazy... I can't figure this one out?
Help me pl3333z3!!!