Also, if anyone can find anything else in the FAQs right now that still mentions invite codes, please comment at me here. I think I got everything mentioned in lyspeth's previous post; if not, please comment at me. I just posted this to let people know that changes have been made.
Here are the changes I've made so far.
[FAQ103] "How many invite codes can I generate? How can I get more?"
[FAQ142] "How do I generate my invite codes? How do I invite someone else to join LiveJournal?"
Removed references of Invite Codes from:
[FAQ5] "Which aspects of LiveJournal are free?"
[FAQ55] "How do I get started?"
[FAQ114] "What happens to my paid account when it expires?"
[FAQ25] "How do I change my username?"
[FAQ17] "I forgot my username/password!"