modem IRQ problem : com1 / com3

[Waffa]

After I cleaned out spy & ad ware, and reinstall windows (it was quite
Messed up), the dial up option under "new connection wizard " was
Grayed out. so i was trying delete from registry folders 25 & 26 under
Rasman/PPP/EAP & Telephony along whit multiple new drivers - nothing (this action have helped me before).
Then I got online whit LAN and install XP SP1, and after that the grayed out
Problem was gone, BUT now when i start to make dialup connection, its looking
Modem from COM1 ; but the problem is that modem installs himself to COM3
Only. So under dial its shows: "device is missing" (but in device manager
Everything works) I was trying to set the modem use the COM1 & disable 3, but all I got
was blue screen. I was trying to play around whit IRQs in BIOS, but still same:
Nothing, what did I wrong, what should I to?