[XPERIA X10 Themes and Apps] michael7168:
First lets give thanx to the develepor of the app Zipthemer, Kellinwood. Below is a link to his thread with some background and instructions with more links on how to use his special and handy app. This is the official thread for support and development of this app so please read

http://xdaforums.com/showthread.php?t=888171

Keep in mind compatibility issues because you might be on CM6 rom and the morph files are for theme chooser (CM7) roms. I have personally found some stuff to work either way but it is strictly by luck because im not sure about the framework differences between 2.2.1 Froyo and 2.3.3 Gingerbread.

Next is a very useful link to get you started in using these add-ons with some more instructions and lots of ways to pick and choose certain themeing aspects of your favorite rom. I know it says it is for theme chooser but i have personally used the extreme dialer morph gray on my CM6.1.3 V1.3 Scamble Rom by Rendeiro2005. My method is to always create these update-zip and undo-zip (the files Zipthemer will create) with your stock custom rom so if it doesnt work (getting stuck at bootscreen) you can always go back to the way it was without having to restore using xrecovery. These update zips are flashable through xrecovery as a custom zip even though the suffix says "update-zip". Just remember the undo-zip brings your themes (dialer, lockscreen, entire themes, whatever you are morphing) back to the way everything was before creating the zips without messing with any of your data. Wow I hope nobody is confused but if I can do it so can you. Just try to play with it and remember the order of themeing you choose. Give thanks to Dont Panic and UpwardSpiral for all their awesome work in the following link.

http://xdaforums.com/showthread.php?t=1013757

Here is one more link for some complete themes for use in zipthemer or for the TMobile theme engine (CM7 theme chooser). I have personally used a lot of R3Ds themes on both CM6 using the morph files and the apks for the theme chooser and all is good. You might find other stuff that works at his site just give it a try and give thanks to R3Ds and others there.

http://r3dmanx.com/r3ds/index.php

I will try to keep this thread updated as I find more useful links and information. I am kinda busy with my daily duties but am addicted to all the wonderful things Android can do but just remember that I am learning and have learned so much through everyone in all of the superb XDA Forums. I love my Xperia X10 and will continue to find ways to make it mine. I know everyone before me can explain in detail on instructions and how things are supposed to work but if anyone is having problems I will do my best to show how I get it to work. One last thing:

The best find to me is the following link thanks to my friend CondemnedSoul in the Eris forums for sharing his speedobattery mod with all of us here on X10. Remember to use zipthemer to create the update-zip and then flash it using xrecovery

http://www.multiupload.com/RJHOKJFUET

If you are on CM7 check is threads for some bad ass themes and his sig for more

http://xdaforums.com/showthread.php?t=922516

EDIT 4/23/2011

Check this site for all the customizing you could want all the way down to just changing one icon in the status bar. All of the instructions are for metamorph but it couldnt be any easier with zipthemer.

http://droidpirate.com/morph-categories/

Dont forget to thank and even donate where you can if you like their work, all I did was share it here.