Just install FeraKernel v18.4 or DoomKernel v6, both of which have CWM built in.
FeraKernel has a later date CWM version.
If you install an old version of Flashtool cira 0.8.6, it came with CWM Recovery and xRecovery which could be installed from Flashtool menus.
Before you flash FeraKernel or DoomKernel, have the ROM zip you wish to install with CWM on the X10 while it's running GB 2.3.3
This way when FeraKernel or DoomKernel are flashed to get access to CWM, you don't have to worry about WiFi and Graphics drivers as you already have your ROM on the phone and ready to go and just need to tap the volume up button to access CWM as the Kernel boots for the first time.