Does anyone out there have any suggestions as to how to get an integrated ATI X1200 running on 10.5.2??

I've been running 10.4.9 with an integrated X1200 for a while now. No QE/CI but I got a resolution of 1280x1024 with callisto b005 which made life bearable.

I've just traded my stripes for spots with Zeph's 10.5.2, and it was a very smooth change over. But now I'm stuck with nothing but 1024x768! Tried using the callisto kexts and graphics mode flag again but no joy.

Any ideas?

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My Hackintosh:
Kalyway 10.5.2 Intel/Amd -- Speedstep, Netkas Smbios, AMD test patch 2.
Mobo: MSI K9AGM2
Chipset: AMD 690v ATISB600 -- SB600ATA kexts
CPU: 3Ghz AMD Athlon 64x2 6000+
Ram: 2gb Rambo DDRii 667
Graphics: Nvidea MSI nx8600GT 512MB -- NvInject 512 (fully supported 100% working)
Audio~External: Focusrite Saffire -- (100% working - ootb)
Ethernet: 8101E -- Realtek R1000 (100% working)
HDD: 320GB WD SataII (150gb Boot Partition)
150gb Lacie Firewire/USB RIP my dear Lacie.