i have a quiestion...... I downloaded from www.gnome.org ale files from ftp to requied for install it. I download some time this files, and when i compiling, installing it, in some files write that the program need other programs. so i installed it and the error is still the same. How to good instal it ?? And is there some rmp files beacose it eat much time

The packages have many dependencies. You can see the order here: http://gnome.org/start/2.6/notes/rninstallation.html

Is there any distro that has (or will have) GNOME 2.6. I don't really want to download it myself

when i want install ORBit2-2.10.0 after ./congigure i have an error: "

DL-2.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `libIDL-2.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libIDL-2.0' found

configure: error: Library requirements ( libIDL-2.0 >= 0.7.4 glib-2.0 >= 2.0.0 gobject-2.0 >= 2.0.0 gmodule-2.0 >= 2.0.0) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them."

I installed the new libIDL (0.8.3) from http://ftp.gnome.org/pub/gnome/sources/libIDL/0.8/
whats wrong??

Redwolf_Eddy, all distros will. It's just a matter of time. You should have unofficial packages in a month.

Rathien, there's a conflict between old and new version of the library. You need to do exactly what the error message suggests - find libIDL-2.0.pc, it's probably somewhere in /usr/local (use locate command) and then add the directory it's in to PKG_CONFIG_PATH, this way:
export PKG_CONFIG_PATH=/your/new/dir:$PKG_CONFIG_PATH
To make the change permanent add the line above to /etc/profile or your private /home/yourlogin/.bashrc or .profile.