Ok I've already watched all the video tutorials i find, but for some reason, when i want to open a tag in Sapien some reason, when trying to open a tag, it simply closes.
I need help i really wanna make a really awesome map... plzz...

what tag are you trying to add?

The correct and immediate response would be to post your last paragraph of "debug.txt" in your Halo Custom Edition folder.

(default is C:\Program Files\Microsoft Games\Halo: Custom Edition\)

wait, what do you mean by that, if the debug.txt is already in the folder do you just make a new .txt file or something? im having the same problem, i extract the halo pc bloodgulch map, try to open the.scenario with sapien, and sapien closes.

the debug,txt document can be used to show a list of errors relating to bad tags etc.
you don't need 2 of the same file,so no don't make a new 1.
first off make a new thread for your problem then go into your debug document and post the last paragraph in your thread,that way people can see what the problem is a hopefully help you out.

Thanks guys.
Now, does any of you know how to make a map without use 3ds Max Studio (i dont have money to pay for it).

http://www.turbosquid.com/gmax
thats free

Ok thanks, but do you know a tutorial of how to make a map with Gmax?