Can I transfer from computer to mem. stick?

Hello,
I have a photo I want to print using the Sony PictureStation printer that has ID photo set up. (The option where you can get about 8 passport style photos on a single card? But the photo is on my computer. The simplest way for me to use the picturestation printer is if I could get that photo on my dual memory stick (w/adapter).

Is there a way to do that? I haven't found any way to print from my computer to the ID photos unless I'm printing from the stick.

Thanks