Exclamation [Q] Can't install xRecovery 0.3 on gingerbread

Hey everyone, when I install xRecovery, instead of getting 3 green checks I get 3 red circles.
XPERIA x10i, I flashed GB 2.3.3 in it, rooted it, installed busybox from the marketplace.

I heard FlashTool has the "+" button to install xRecovery (and lets you chose between CWM or GB), but when I click "+" in FlashTool x64 I get "to be implemented".

What am I supposed to do? As a new member I can't post links, but heres a screencap (substitute * with t)