Apologies for the instability. I'm still working on phpBB extensions, and have broken the code multiple times. Guests may now post in the "Welcome & Introductions" forum, and othe other forums should now allow posting for registered users. Please do let me know if things aren't working for you. Image uploads are working, as is YouTube embedding (no code required - just post the YouTube link in the body of a message). Thank you for visiting Inyo Space!