Why do you want a DOS mame, anyway? (If your computer is too old to run winXP, it doesn't have the power to run the current mame at full speed, which is why people still run old versions of mame.)
Actually , my cabinet is running DOS , with AdvMAME & AdvMENU. Since there isn't hope for an AdvMAME update , I was thinking of just running a newer DMAME for the few games that I am looking to play.
As for the PC , it's plenty fast , and probably overkill for what I'm running. I didn't want to take the 'used' route , so I purchased 'new' a few years back. Pentium4 2.8ghz w/512mb RAM, running AdvMAME , on strictly a vertical-based cab.
No problem at all , and the games run perfect , but like I said , I was just hoping to update and catch some of the newer/fixed releases.

Or perhaps I should just leave well enough alone , but thanks for the input , now I know why there hasn't been a new release in ages.