Your ROM: 113-A27502-124
My ROM: 113-A27502-127
The ROM you currently have is the last one 'officially' distributed by ATI for end-user updating. The 127 version was provided on a number of retail cards pre-installed. This is probably the only reason the ATI software doesn't fully recognize your card.
If you are willing to go the 'unofficial' route, the 127 ROM can be found and flashed using alternate methods. What is critically important is determining whether or not your card is a legit Mac version or a PC version re-flashed. The PC ones use a 64k ROM chip while the Mac ones use a 128k ROM chip. If you flash the larger ROM image into the smaller chip it won't work and you would need access to a PC computer to put the old ROM back in.
See the following link and read through the discussion in detail:
http://www.cubeowner.com/forums/index.php?showtopic=10039&st=15More information and ROMs here:
http://themacelite.wikidot.com/wikidownloads2 There's actually an even later ROM for the 9200 available from that site but I don't think I feel the need to try it given that my card is working properly with the stock 127 ROM. I would strongly suggest that you don't flash your card via the unofficial route if you don't have a PC available as a fallback. If you flash on the Mac and the ROM is not compatible or truncated you won't get video any more on the Mac if it is your only card. It is easier on a PC, and sometimes the only way possible in this circumstance, to use a second video card for your monitor while running the ROM flash. That way you always have one working screen no matter what happens with the 9200 card. If you're not comfortable taking the risk then don't do it.
Oddly, even the final August 2005 ROM updater for Radeon has just the 124 version as the maximum included. Anything later has to be flashed another way as I mentioned.
One final note - My 9200 card still shows as "unrecognized" in ATI Displays, but acceleration is enabled and working with the 127 ROM.