1) Install attached .cab. Then soft reset.
2) Go to Settings -> Input. Make sure all of the options for Word Completion are checked.
3) Bring up the on screen keyboard. Select Compact QWERTY. Move the slider from ABC to T9. Then you can select Full QWERTY once T9 is enabled.
4) Enjoy Word Suggestions and Autocorrection!
Note: I soft resetted a couple times and full keyboard is still working (not stuck on numbers). This might be what we are looking for!
Disable_xt9.cab