i used the same version of unetbootin (549). but my problems were with ubiquity and the usb drive.
for the boot splash i changed it with another theme (spinfinity):

sudo apt-get install...

ubi-partman failed because you have to remove your usb drive otherwise it doesn't see the partitions tables. I installed kde 32b manually like bt 3!! it works pretty fine.

i installed the KDE-32 iso via USB live on my asus 1001PXD
the problem is that ubiquity doesn't see the partitions table with the usb drive mounted!!!
if i remove the usb the installation crash, so...

I had the same problem because ubiquity doesn't see the USB drive so you can not complete the installation.
i dowloaded the iso KDE 32b two times but i got the same bug in the ubiquity so i did it...

xanders se hai creato un nuovo utente..allora devi inserirlo nei gruppi audio ,video..ecc.
sei vuoi installa kuser....così ti faciliti la vita!!
per far partire la connessione con wicd al boot:
...