Hello!
The first thing you should do is to figure out what kind of system (operating system, hardware, ...) your provider uses. If you compile your code on a pc with a different cpu than the cpu of the pc you want to run your program on then it doesn´t work.
the second thing is you have to set the appropiate rigths for your cgi-program on the remote host. In most cases it is 755.
The third thing is that you have to tell the remote client (i.e. your browser) what kind of data your sending. Therefore you have to send the string "Content-Type:html/text\n\n" first to the client before you can send any kind of data.

I hope i could help you....