I was finishing off my map when I noticed I had no test sign, so I pulled up the tutorial on sdk docs and built one, but nothing happens when I trigger the trigger once. I know a lot of you have made maps with test signs so I was wondering how to make the sign turn on work. Also it says it will display 00, how do you change that.

Here's a tutorial for custom test signs:
http://www.youtube.com/watch?1&v=XXisv9z-fqY

Thanks Portal2tenacious it helped, but how would I transfer this to someone Else's PC, like when I upload the map?

Check this thread, maybe it could help you out. And I think there are also more threads here related to this same subject. Use the "Search" button on top of the page

I'd reccomend using Omni's old signmaker program, it saves your sign as a texture rather than overloading the script.

FelixGriffin wrote:
I'd reccomend using Omni's old signmaker program, it saves your sign as a texture rather than overloading the script.

Yeah me too... I do in that thread indeed.