In all TPTs the boot and recovery partition sizes have been changed to 5MB (from 4MB and 6MB respectively). This should fix the errors present in some of the earlier TPTs. The TPTs contain partition.mbn, appsboothd.mbn, appsboot.mbn and partition_zte.mbn as well as Clockwork recovery as boot.img and recovery.img and a blank system.img.
Whenever you flash a TPT, there's also a chance of bricking your phone, make sure you're charged up (remove the charger before you start) and use them at your own risk. Make sure you check the md5sums before you use these. There's one for before and after you unzip it (check the nandroid.md5 file in the zip).
Option 1: 150MB system, 35MB cache, 255MB data mirror
Option 2: 200MB system, 35MB cache, 205MB data mirror
Option 3: 150MB system, 2MB cache, 288MB data mirror
Option 4: 200MB system, 2MB cache, 238MB data mirror
Returning to stock:
You can return to the stock layout by flashing the stock TPT for your country. Here is the Orange UK TPT.
After downloading, check the md5sum.
Unzip the file to the root of your sdcard. You should end up with a folder called "image" on the root of your sdcard with a image.bin file and a nandroid.md5 file inside it.
Check the md5sum of the image.bin file matches the one written in the nandroid.md5 file.
Turn your phone off and take the battery out.
Put the battery back in and power on holding the vol+ and menu buttons.
You should see green text appear on the screen, then once its finished you should boot into Clockwork recovery.
Flash your chosen rom and reboot.
If the TPT won't start, try using a different sdcard. Some just don't like TPTs.
Delete the image folder once you're done to prevent accidental flashing.
Check the md5sums. If they don't match, delete it and try downloading again.
No guarantees. I don't have a Skate to try it on, and even if I did, it might not work on your's.
Edited by Amphoras, 23 January 2012 - 10:14 PM.