Gwyn's Colourising Script

Text to colourise:
Your Name: (replaces "You:")
Use bold for names?
Use underline for names?
Check forum post size limit?
Forum post size limit (# chars):
(29000 for the LL forums, 19000 for others like SL Universe)
Use timestamps?
Get rid of online/offline and voice chat messages?
Style of code output:

Colourise another transcript