I just discovered a fix for the problem of the sdcard not being mounted in NITDroid ICS or 2.3.7 after installing on a new partition, it is a simple symlinking issue.
Basically, open a file manager and you should find a folder called "sdcard", delete it. Then, using what ever way you like, add a symlink of /system/bin/sdcard to the location where you deleted the sdcard folder.
In other words. replace the sdcard folder with a symlink from /system/bin/sdcard.