I did this the other night. If you are following the EASIER guides, you can follow the procedure almost exactly. When you set the partition sizes, simply adjust it as you'd like. Keep in mind that the MMC2 partition is where you will be installing apps. Essentially you are taking directories in flash memory and pointing them to directories on the MMC2 "device". You can then still have an MMC1 partition that is accessible from other operating systems.