Beakybird is correct, the 3K won't recognize the program files to copy and paste them. The unzipped files from the update must reside in the root directory of the Smart Media card. The card reader is the way to go. I saw a 12 in 1 at Sam's for about 12 bucks.
By the way, I've updated my 3K to v1.55 with no problems. I was hopeful that it would enable recognition of the 4 port USB hub and the 3 thumbdrives and 1 WI-FI, however only 2 of the USB drives are recognized. The 4 port hub does make it easier to change drives without the risk of damage to the USB port on the 3K.
Ron