I'm a bit mixed up with your descriptions.
If your on EC05 and converting to EXT4/CWM 3.0.0.6 you DON'T flash that EB13-DUALFS-KERNEL.zip once done. That kernel will not work on EC05... Instead you need to finish the conversion by flashing an EC05 based custom ROM like Syndicate v1.1.0/Bonsai 4.0.1/midNIGHT v5.2.
If your on EB13 and converted to EXT4, once you flash that DualFS Kernel, then follow up by flashing a custom ROM before you reboot the system or leave CWM and that should resolve your problems giving you a successful boot.
The ANDROID flashing over the Galaxy S logo is part of that DUAL kernel your flashing, its showing that when it was first created that custom boot animations were put into use.
If I am wrong about your progress going off your description please let me know exactly where you are in the process. What Froyo version and what you are doing so we can plan your route to get you going successfully.