it possible no upload images on my site (my site is in a free host with limit space 100mb) but put a link url of other website e show normally the images????
No.
Keepin coppermine core files on one server and storing the images on another server is called "remote storage". As suggested, coppermine doesn't have this feature (the dev team has deliberatly not implemented it, as we're convinced that such a feature would lead to abuse). Has been asked a million times already. Hence Nibbler's short answer. We're reluctant to ask the same question over and over again. That's why we ask you to search the board before posting in the future.