As milosh said, only the 1st ON Text event will work if you have more than one. You can try this:
on *:text:!rules:#channel {
msg $chan 4ROOM RULES ARE:NO REQUESTING NO DIRECTING NO LOCKED CAMS NO PMS!
msg $chan No abuse of the trout!
msg $chan No food talk, makes me hungry!
}
This way the script will send 3 messages to the channel. You can add as many as you want,
however, it is not recommended to because you can flood yourself off the server, besides of being an annoyance in other's ppl's eyes.
Hope this helps

Zyzzyx.
Edit: darn I took so long to write that those 2 replies were made and I didn't see it :P