Is GreyMatter formatting still available in WP1.2?

Hi,
I installed WP1.01 using the Fantastico tool provided by my web host. I’ve imported about 400 greymatter (v1.3) posts no problem and had greymatter formatting switched on.
Today, I manually upgraded to WP1.2 and I can’t find the option to turn GM formatting back on – loads of my entries have “\” scattered through them as a result. Was the greymatter format feature removed in WP1.2 or am I looking for it in the worng places? Any help appreciated.
Thanks.