I have put up some files for this. They are:
DOX map pack
OpenCall map pack
MIB map pack
presto pack (scripts)
Writer's Scripts
mHUD (different reticles)
and the 1.8 to 1.11 update
Thay are located
here.
The mHUD, presto, and Writer's Scripts are there because it was a pain in the ass to find them. The DOX maps, I remember were fun to play. The OpenCall maps were the last official maps put out by Dynamix; however, they are maps submitted by the Tribes community and given the "okay" by Dynamix. The MIB maps, I have no clue. I just downloaded them on a whim.
Enjoy!