Please SOMEBODY HELP me!!!

I used to have the Norton virus software problem with Lime wire where it would work for about 5-15mins then crash the whole pc (i.e. make it unresponsive).

I have gotten rid of Norton and have Mcafee instead, free from my AOL broadband server.

But now, whenever I open Limewire, my pc crashes to a blue screen with this message:

Stop:0x0000008E (0xC0000005,0xF86712CC,0xB940498C, 0x00000000)

MPFirewall.sys-Address F86712cc BASE AT f866f000, dATESTAMP 3DF0C071

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Please, please, can somebody help me, I really want to keep Limewire.

My operating system is Windows XP HOME
I have AOL Broadband connection
Fairly newish PC, good specs