Hi...I am a little unsure what your issue is...
I have A viking Designer 1 and I use Embird all the time.
After I have finished doing things to my design...I save it either as a VIP or SHV file and using the software that came with my machine (3D Disk manager) I open it up and transfer it to my stick. My machine is an ugraded USB but I don't think this makes any difference as 3D manager gives the option to read and write to Floppy disk also. I am presuming you have that software I know this means an extra step to the process but it only takes a minute.If you don't have the software I am sure you can write straight from Embird
I have found Embird really easy to use....if I can help more please PM me