jhford - yes.. that is to go to the external card on the n810.. since you took the external card out - it's trying to clone to something that doesn't exist.

the n810 has 2 SD cards.. you just only know of one.,. there is an internal card that is always there that is 2GB... so to install to that one you will download the install tools file for the n800 or n810 internal from the OP.

If you want to install to the EXTERNAL sd card on an n810 then you would use the n810 external SD card link.

Also.. when troubleshooting these kinds of install problems it is best to clear your application manager logs in Tools->Logs and then show us the output from trying to run the installation.