Thank You for answers!
I'm running 2 kinds if "pingers". First is checking normal web servers (and here ping is enough), second is used for monitoring Gadu-Gadu servers (Polish - from where I'm - IM similar to ICQ) - problem is in fact, that servers are often up (what can be checked by ping) but software which normally handle requests from clients is not working - so from users point of view, server is down. The only way to check if situation looks like I described is to send request to certain port (8074). unfortunatelly ping is not able to do this.
wget - I'm almost sure, that I cann't use it in this way.
curl - I'm not familiar with it enough, although I heard a lot of good things about it. After quick visit on php.net I found this: CURLOPT_PORT (as I read now it's able to do ipp.ipp.ipp.ipp:port ; ) but question about restrictions is still actual). I'm not sure, if it allows me to choose any port I'm interested in... Are there no restrictions about this?
Thank You once more!
Borys 'bwgg' Gogulski
PS. Obviously nmap would be better for me, as I'ld not have to learn next tool ; )