Question [Q] Htc Dream G1 pvt32b firmware update problem

Last month i bought HTC Dream G1.

Model Number: T-Mobile G1
Firmware Version: 1.0
Baseband Version: 62.33.20.08H_1.22.12.29
Kernel Version: 2.6.25-01843-gfea26b0 android-build@apa27 #6
Build Number: kila-user 1.0 TC4-RC29 115247 ota-rel-keys,release-keys

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DREA100 PVT 32B
HBOOT-0.95.0000
CPLD-4
RADIO-1.22.12.29I

SEP 2 2008 [/FONT][/B]

I have update firmware versions from 1.0 to 1.1 and 1.5 one by one after this i want update 2.2 froyo cyanogenmod . when i downgrade its from DreaIMG RC29 1.0 version , many times i have rooted my g1. Now when update to 1.1Rc30 it says no such file in sd directory to update I have do many times this method try to update it but im not succesfull. what problem pl: help me friends to update 1.5 or 1.6 thats it.as soon as posibles im waitings my friends