First, I refuse to download any file from a site like the one you used. Instead upload to
http://www.akimbo.in (i know its down right now but for future reference) or definitely to
http://www.quadropolis.us . If you must upload it somewhere else than try
http://www.box.net or
http://www.mediafire.com for a better file host.
Second. After I downloaded it anyways since i was bored I noticed:
1) Your file structure is not correct. You only included the .cgz in your upload. No one wants to manually place the file. We want a package that is automatically executable from the AC directory for our convenience.
To do this (I'd give you akimbo's page but they're down):
Make a .zip file with the structure:
packages/maps/"map file/s"
2) The map itself is a fine first attempt but tbh it's bad. You only used white lights, and texture choice is bad, not to mention layout. You included 2 tree mapmodels and a variety of others in this small map, which cause lag on lower end systems, so try to keep the high-poly mapmodels low in the future. All in all, it sucks but hey, everyone's first map does.
Keep up mapping and you'll get better. Look to the works of other great mappers for inspiration and don't give up!