As far as I can recall there is a SD installer for CE, not 100% sure if it works only for 5 though.
Out of memory is usually a sing of an incorrect installation for the precedure on the CE4.2 devices.
CE5 and 6 can use the normal versions from the 1 posting, but you need to choose the right screen resolution for your device.
If you do a Google check for the SD installer you might be lucky, otherwise I can only say:
Use the correct version, start once without a map to generate the bif file, add the map activate and it should work. If not delete all and use IGO