No Free IRQ/ISA Modem Installation

So I just upgraded my computer with a new Abit KT7A Mobo and a AMD 1.4Ghz CPU. Everything is working great except for the darn thing will not recognize my Best Data 56F ISA modem. My old Abit Mobo had two ISA slots which gave it Com 1-4 (i think that's what it did) and had no problems recognizing the modem under COM 4 but my new Mobo only has COM 1 and COM2 available and no free IRQs. Aren't those COM port specifically for things such as modems? So I set the jumpers on the modem to either COM 1 IRQ 4 or COM 2 IRQ 3 and I get a resource conflict everytime I boot up and Win 98 still does not recognize the modem. The Troubleshooting guide on the BestData web site says to free up some resources but i can't figure out how or even which ones if i knew. What do I do? I've tried everything I can think of. The only other cards I have in there are a SB PCI 128 sound card and a Viper 770 AGP video card

I've tried it. And the OS still won't recognize the modem. I've installed the driver's manually, modem still won't respond. I've gone to the DOS prompt and used the echo atdt com1 comand and I get a dial tone so the modem is working, but under windows it won't get recognized.

After I disabled both comm ports and running add new hardware windows still did not recognize the new comm port for the modem. I installed the modem manually by selecting it from the list and then tested it and it worked. Thanks.