This forum will never be "finished" - there'll always be corrections and updates. If you can't find what you want, just post a question in the Computer forum. And please let me know if you find something that's clearly wrong or
that you just can't understand. 
Important disclaimers:
Everything's customisable these days; the screenshots in the illustrated step-by-step stuff are of my system (Windows xp on a PC and, occasionally, Firefox on a Mac) and I'm sorry if what you see is different but there's nowt I can do about it!
Also there's usually more than one way to do anything in Yuku. For the sake of brevity and my sanity I've often just given you one method that will work. 
RG site
RG Membership (and registering with Yuku)
Making donations or payments to RG
Chat Room - and the wonderful weekly RG quiz
Dealing with nasties in the chat room
Glossary of some terms used in RG and Yuku
Yuku forums
Brief overview of Yuku features
Keeping up with Yuku - announcements
Registering with Yuku (and joining RG)
Changing your Yuku account name/display name
Becoming a Yuku Supporter (what, why, how)
Navigation button changed from grey to blue
How to get to the RG Home Page from the forums
What to do about offensive postings and spam
E-mails from Yuku (subscriptions & notifications)
Community membership - joining and leaving
Vanishing red ladybirds (and marking forums read)
Collapsing and expanding groups of forums
Changing the way you view the forumsProfile
- the basic stuff (miniprofile block)
- those not-so-scary "HTML" blocks
- jazzing it all up (profile skins)
Messages (PMs) to other members
Posting messages in forumsFormatting postings, and more - a quick iconorama
Formatting text in postings: matching text to the background colour
Setting the photo competition (including posting a poll)
- Windows
- Mac
Getting characters that aren't on the keyboard
Copying your text before posting to make sure you don't lose it
Staying in the topic after you post or edit
Why have all the postings stretched?
Link not opening in new window
All about pictures
Opening a Photobucket account & uploading pix to it
Linking your Photobucket account to Yuku
Posting a picture or an animation:
Posting a thumbnail as a link to a larger picture
Saving a picture or an animation from the Internet
Websites to look for animations
Where to put photos and animations you want to use
Re-sizing pictures and animations
- in a posting (as you create or edit)
Changes made in Photobucket not showing up in Yuku
Graphics missing - the dreaded red X!
Some general stuff
Matching the background colour in postings
Getting Java (for Chat Room and Jigzone)
Opening a second window (in 'Windows')
Forum font is too small to read
- in Windows- in Mac OS X
Jigzone
