Booting Mint 7 from a "Live SD Card"

[Husse]

boot to flashing cursor

I suppose you do not mean a mouse cursor but the "minus" in the upper left corner
For the mouse cursor just start in Recovery mode and do a Fix X
For the other case you have to start in "Compatibility mode"
But I don't understand this

The ISO was by Mint's 'APTonCD'

APTonCD is an application to store downloaded packages on a CD/DVD and is no ISO building tool
Perhaps you mean Remastersys, but why not the standard ISO?
I know there may be some tricks involved in starting from a SD card...

[moldor]

I've successfully done this when first testing Mint on an ASUS 1000HE.

You need to download Unetbootin to create the bootable SD card, from http://unetbootin.sourceforge.net/

Moldor