Install Familiar from CF to builtin Memory

I was reading and following these instructions:

http://handhelds.willowisp.net/h2200FamiliarInstall-linux.html?rel=v0.8.4-rc3&ipaq=h2200&boot=opie

I am using 0.8.4-rc3 running from my CF card and was trying to install to the 
builting ram.

The only problem I have is there is no "/dev/mtd3" device...however there is 
a "/dev/mtdblock3".

Are these the same?  The instructions caution not to mistype /dev/mtd3.

What should I do?  I only have a usb cable, so I can't use serial 
instructions.

Thanks