Needless, to say - plug your guitar directly into the computer, too.
The adapter cable is under $10 from Radios Shack (ask for a 1/4" male to a mini-plug)
And -
If you can afford it, go to Circuit City or somewhere, and buy the recording software.
For Less than $75 you'll get everything you need. No bugs, nothing done half-way; lots of extra stuff for when you're ready for it. . .
No plug-ins to download, - all sorts of fast, polite & knowlegeable online support to answer your questions . . .
Just plug in your guitar, and produce an MP3 . . .
Zip - bang! Done.
but -
Yep - lots of opinions, here.
Hey, you can start recording for free, but -consider working your way up . . .
Once you've purchased a program, you'll see why it's actually worth paying for it . . .
Ok, here I am: commence firing . . .
