I'm using T-20040822 build right now but since this is orb radar code related i think better place to post it is here...
I noticed 2 minor issues in new ord radar code. First is huge radar dot scale-up. If i got it right there are 2 different scale factors. If you target something dot gets a bit larger and if ship is in front of you or behind, radar dot is smaller or larger. Problem is if your target is far behind you it's dot it about 3 times bigger than other dots. I guess problem should be solved if you first scale dots by distance and then add fixed number to radius of targetted ship's dot.
Second issue is that with this new code radar background always resets to green color (exactly same way like the ping counter for multiplayer games). If you set it in mission on any color it stays like that only till end of mission and resets on green next one anyway.

Otherwise this new radar is really nice, good job.
Well... and to not only moan in here i made orb radar friendly background you can use. Don't expect anything "cool" or "revolutionary" tho, i just removed the inner lines so orb radar is easier to read.

You can download it
here.
And finally here is screen with all mentioned above (huge radar dot, green background and new background image)
http://svizel.kbx.cz/images/radar.jpg