Online pilots thing? What you mean?
BTW, D2X-XL has tracker support. The whole thing is only 2MB flat, then add the retail files for D1 & D2, plus hi-res textures if you want them (of course!), plus the hi-res Pyro (~5 Megs, IIRC). But the 2 Meg will get you going. Let me know if you need help re-installing the retail or anything else...
EDIT: Click on the D2X-XL link on the slide-out panel to the left; then open the same panel on D2X-XL site, hit "Worklog"; check out the D2X-XL video, as well as the other vids... also look at the new singleplayer mission screenies he's got there.