I already responded in your "Tined out...test" thread:
Originally Posted by rijosho
If you're going to write a long reply or a long intro to a build thread or whatever, first write it in Word, then paste it here. I forget how long it takes to time out, but I think somewhere around 20-30 minutes. So if you write it and come back to it to write more, you can also just COPY ALL before posting, and if it doesn't post, just paste an try again.