Using flash memory for my linux installation

I have a 256MB flash card on a iPAQ on which I just installed Familiar
Linux. Unfortunately space seems to be rather limited, preventing me
from installing the QPE interface.

When I do a "df" I get:

Filesystem 1k-blocks Used Available Mounted on
/dev/ntdblock/3 15360 14352 1008 /
ramfs 15468 14996 14998 /mnt/ramfs

I should have 32MB ram and a 16MB rom on my iPAQ. I assume that this
has been split in two, into my root filesystem and a ramdisk.

My question is: Can I move part or all of the filesystem on to the
256MB flash card to make more room for installing things such as QPE?

Thanks,

Ian.