Just posted about the HTTP_GET variable not being directly available for my script, the register_globals directive was the reason for this, and the problem is solved, thank to the http_get_vars array.
Now i have the same question about the Apache variables, like $http_user_agent
They are not set either, so i guess there is another way to reach those, but the few attempts i've made with http_get_vars were unsuccessful...
There again, the variables work (i.e are automatically set) on the w2000 server (register_globals on) and not on the solaris (register_globals off)
I hope it's ok creating another thread for this question, which is somewhat different from my previous one?