What Xservers do transparency?

I keep hearing about X.org. Are there any versions of Xfree86 that allow transparency? I’m afraid I’ll never be doing transparent terms or anything involving even simple transparency because I’m in a corporate environment and can’t change the Xserver, but I can always lobby to get a more modern package installed. Our server is XFree86 Version 4.1.0 (21 December 2001). I’m just interested in the earliest version numbers of the different servers that support transparency. It seems it’s such a big thrend in FVWM themes and I can’t take advantage of it…

Well, Xorg does it natively. You want to really see this thread:

viewtopic.php?t=445&highlight=translucency

– Thomas Adam.

Thank you. I have moved my question to the indicated thread.