Your best bet is to get on a site like howitworks.com or about.com and just look up guitars... They should explain what each piece of the guitar is on there and what it does... Then from there go through the Gear, Tech, and Tone forums and open up the "Helpful Links"... check alll those links out because there is a ton of good stuff on those links!!!

IF that doesn't help. Please try to be a little more specfic with what terms and gear you're not familiar with or would like to learn more about.