No,any port will do, provided it's not already being used for something else.
Back to the 'not found' problem: it looks like you're not in the right directory when you issue the command.
What directory is your cccam in? If it is in /usr/bin, then type:
cd /usr/bin
(if it's in a different directory, 'cd' to that directory instead)
Then type:
./cccam-213 -d
If you still get 'not found', then post the output of:
ls -lai cc*