Please redownload defy_recovery.zip.sorry for my mistake.
please downloade attachment 474211
Here is the tut of how to root the defy uk 2.51 rom.
It's simple and easy way.
this will be a step by step tut.because of my poor english.i will try to explain more detial.
1、download attatch files.
2、flash the defy_2.21_boot_only.sbf via rsd then reboot in to system.
3、open you phone's usb debug mode(settings-application-development-usb debug mode),then double click the defy_recovery.exe you just downloaded ,it will process the root method.when it finished you phone is rooted with superuser and my clockworkmod recovery for defy.
4、the last step is flash the defy_2.51_boot_only.sbf via rsd lite.
5、and now your phone is rooted and customized recovery installed.
This method original comes from adlx @ modmymobile.com
if your like this tut.. please buy me or adlx a beer or I can buy another phone eg. Nexus S ...Thanks.