I made a entire map and senerio (somewhat) and i was wondering, how and where would i upload this awesome senerio so the rest of the C3 fans can enjoy this creation???

Put it in a .zip file and then go into the Civ III Creation and Customization forum and the Scenario subforum. Or you could upload it to civfanatics.net, but the .zip file is an easier method. Create a new thread and simply attach the file. Give it a little description so as to let everyone know what it is and post the thread. Also, a screenshot would be helpful.

How do you put it in a .zip

You need to download WinZip, which is the standard file compressing software. Search for it on Google.

If your scenario is large (ie, lots of custom graphics etc) then you should upload it to 3D Downloads rather than to CFC, but give the link here.