The link below is the rooted froyo firmware for defy.
It's a nandroid backup. you need to have goapk mod clockwokmod recovery installed.
this backup works on any firmware including 2.21 2.34 and 2.51
it's simply you can just restore the droid2.2.zip file .
wipe data and cache.
then flash a defy_2.2_boot_only.sbf file via RSD Lite.
The download link:
If you like my work,please buy me a beer.....Thanks.
the original sources:http://bbs.goapk.com/thread-50128-1-1.html
mirrors are welcome. you need to include the original sources.
PS: download will be avaiable at 19:00 GMT +8