go to your ROM.zip and find your systemUI apk and your framework too - go to UOTkitchen and create your theme- upload your files- then just download the zip and flash it through your recovery.
Another good source of themes is "Theme Chooser Themes" in the PlayStore.
It lists and filters themes for the CM7 theme chooser app. There's quite a few listed for mdpi screens (the V has an mdpi screen).
Sent from my LG-VM670 using Android Central Forums