Today i installed the CM-9 ROM by ErwinP on my 1 year old Wildfire.
Its good with some issues:
1. Camera doesn't work.
2. gallery has a bug. The albums were visible when we tap and hold on the screen and drag to left or right. when we lift the finger the screen goes blank.
3. menu loading is slow every time.
4. screen lock is present but you have to select slide in the lock screen settings.
For any further issues, i'll update here, as I am new to this forum.
The ROM after install takes 151.8 MB of internal memory.
I have custom MTD partition of 160MB and 15MB cache. I'm getting 290 of internal memory but the system initially is taking 40 MB(I don't know why.)
So, usable is 250MB internal memory.