asking - eclair 2.1 firmware

[matana]

hi, i have a problem here.
my S7 105 cannot identify my internal and external SD, the problem occur after i upgrade with trizet v3 rom, and i downgrade it again to official froyo 2.2.2 indonesia.
i read that to fix it, i need to downgrade to eclair 2.1, but i can't that firmware anywhere. if somebody has it, please share with me.
or if somebody has clue to fix it without downgrade to eclair, i'll be glad.

thanks