Just want to say great job on the rom dw! It runs smoother than 1.4 even with TSM in it. I always hated TSM on my epic because of instability issues, but this is a really good integration!
Jihad, I would like to chime in here. I came from eclipse 2.0 as well and had some issues too. I won't go into detail what my issues were, but I will tell you how I fixed mine and kept all my data. First things first, I backed up my eclipse setup with cwm. Then Odin back to stock ep4. Take the ota update to fp1. Follow the instructions to gain permanent root/cwm here in another thread. Wipe data 3x. Wipe dalvik. Install tweaked 2.0 BUT DO NOT REBOOT. Wipe data again BUT DO NOT REBOOT. Go to advanced restore and restore only data from your eclipse backup. Reboot and you should be good. I also use the eclipse launcher on tweaked as well with no problems as well. Hope this helps you.