How do I do this?

[xibrendanx3]

I just made a little server.

Im with 2 other people at the moment trying to figure out how to enter coop edit mode so we can make our own map.

I tried /coop ac_douze but when I did i get this error:

[SELECT ALL] Code:

the server does not have this map
could not vote: invalid vote

I AM SO CONFUSED!

I have googled over and over and over again and the only answer I got was...

to do /sendmap mapname and /coop mapname

NONE WORK!

Please help!

Thanks!

~xiBrendanx3