What you can find here:
Member's Guide V2! How to use T21
Hosts Guide The Guide for T21 Hosts
TBB Code Reference A handy guide to the posting codes used on Tangent21
FAQ: Tangent21 All you ever wanted to know about T21
mIRC userguide A Brief Guide to Getting mIRC Up and Running for use with Tangent21.co.uk
Guidelines for Meets Guidelines for Meets
Meet the Staff Who are those people that run the site...