Since nobody dared to give any hint, i gave a try to repair cabbiev2.1mod in a free time. I brought back to use progress bar and album art. Now they working again. Actually current cabbiev2 is so similar to this mod, that i copypasted all neccesary tags and made mod viewport compatible.
My cabbiemodv2.1 is different from regular WPS only in having additional date and clock (RTC) viewports. Still worth a hassle for me. I added WPS as attachment.
Edit: I commented out Next Track as same in original mod, just to make it more different than default WPS.