Well, be careful.
I was using the drivers that came with the card (6036, I think) and the MMC 7.5 on my Radeon 8500DV. I was happily recording TV, etc. But I was running into a fairly consistent problem that would require reboot between recording sessions - not good for VCR-like routine recordings.
So I d/l'd both the 6037 and 6052 as well as MMC 7.6. My hell then began. I uninstalled my current drivers and rebooted and no matter what I tried, I booted to a blank screen (I tried safe mode, vga mode, last known mode etc.). It did boot - I could see it on my home network, but the blank screen couldn't be resolved. I then tried a repair installation, which so screwed up my XP installation that I ended up having to reinstall XP to a new directory.
At that point, since I couldn't get back to where I was, I decided to refresh all of my backups and start with a fresh format of XP. I got to the point in the install where I had all of my drivers (RAID, SB Audigy, VIA) working fine but not yet to the Radeon 8500. I then ghosted this to another partition as well as CD-R.
I'm glad I took the discipline to do it this way. I tried just about every damn combination of drivers and MMC I could. But only one (and that is the original CD that came with the card) resulted in a working rig. Everything else got a "TV Failed to initialize the video" nastygram. And without the ghost image to start with, I could never be certain that I had properly removed the old stuff. As previous posters pointed out, video drivers, particularly ATI, really wrap themselves around your rig's spine.
So on the original question - getting better or not, for this DV'er and light gamer, I would say not.