Yesterday I finally decided to mess up with my phone, and I've installed miniCM v5.1 ROM + GAPPS from the proper topic here on forums and modified kernel which boosts my phone's clock to 825MHz. Everything works marvelous, phone is responsive like never etc, but the problem is Youtube isn't working.
I've tried installing GAPPS again, I've reinstalled YT again, I've also tried downloading Flash 11, but it says it's not compatible with my device, so I installed it manually from *.apk file. It installed correctly, but still YT doesn't work. It's not like it doesn't work at all, there is no video/sound. I can see all comments and information, but movie window has error message saying the "problem occured while trying to play" or something. And it happens for every movie I tried.
I am using: miniCM v5.1 + GAPPS provided in link in proper topic, NOPE Kernel v2.6 825MHz.
I will be very thankful for any help you guys can provide.
Also thanks for warrior1208 for his work with miniCM, Hasoon2000 for awesome app that made possible for me to install this stuff and me4488 for providing us overclocked Kernels