Guys I need some testers. This will require you to flash the new EXT4 then install quantum 2.5 then flash m new build. I know for sure it works this way... I will try to stream line it later. This is a one time process. Once done you can flash all EXT4 supported ROMS.

Go to [ROM] Quantum Rom v2.5.0.DK28 | EXT4 SUPPORT! [Updated 12/28/2010] - xda-developers

DOwnload the ROM and follow the link to download the newest EXT4.zip... I will be uploading the new midNIGHT ROM and once you have completed the EXT4 install then you can flash my ROM.

FOLLOW THESE INSTRUCTIONS:

Okay guy's, I finally got this to work. these are the steps: 1st, I odin back to STOCK DK28 ( no extended ).. Then I installed oneclick root and recovery w/redirect. then I uninstalled the root and left the clockworkmod. I formatted my sdcard, then put quantom 2.5 on my sdcard, along with the FINAL kernel.zip. Then I booted into cwm 2.5.1.0, and installed Quantom 2.5. Take note that your phone WILL NOT boot all the way just yet, it will hang at the SAMSUNG screen. This is okay. then download the ext4.zip in the OP to your desktop, then extract it into a NEW folder, and name it "android". ( just open the ext4.zip file up using winzip, and drag and drop ALL files in the .zip into the andriod folder you just made). Okay, since your phone is still gonna be at the samsung screen, pull the batt, and boot back into cwm 2.5.1.0, but this time, scroll down to "advanced"> then select "reboot recovery", and it should boot into 2.5.1.2. NOW, unplug the usb cable and plug it back in (on my pc, in running WINDOWS 7 with no PROBLEMS "Prophour") Also, when I plug in my usb cable my pc makes a sound to let me know that it see's my phone. It should see your phone, and if your not sure, just go to the next step. Aight, now open the new folder called "android", and go to the "install-ext4.bat" file and double click it. It should do it's thing... Then DO NOT BOOT your phone just yet, once it's done, reflash Quantom 2.5, then flash the FINAL-KERNEL.zip file you put on your sdcard after you formatted it.. That SHOULD put you where you need to be Prophour! Good luck...

PM me when you have completed these steps and confirm with quadrant....I will send you a link to the midNIGHT ROM. This will be a closed beta so no one fubars their phone because they aren't ready to flash their phone to an EXT4 supported ROM.