I really don't know what to do...live journal isnt as easy as myspace of xanga and i don't know what this "LAST_N" thing is. Someones just gonna have to walk me through it. please helllllpppp!

Please check out the livejournal FAQ on how to customize your journal and custom livejournal tags.

http://www.livejournal.com/support/faqbrowse.bml?faqid=7

also, a good place to learn is everything_lj