Does somebody knows...

[mike_jmg]

Does somebody knows where can I get a pack of custom themes for 3.71M33 (NO .PTF ONES), or if such thing even exists

I like having the waves on top of the wallpaper and the ptf ones make my psp lagg a bit

[MicroNut]

3.52 themes work on 3.71M33 and above after being converted.
Generally only the top menu is convertible.
Volume, Batteries and USB Slider Bar are not.
They can be converted but will not load (semi-brick)
Use CXMB to test your converted icons before flashing.

The same method to get waves to ride on top of the background image applies to 3.71 and above
except that converting and renaming the jpg to bmp no longer works.
You'll have to use a native bmp and have the space on flash0 to store it.

Most of these PTF themes have bmp backgrounds to go with the themes
over 100 themes for 3.71m33