Ah, now I understand. I'm a frequent abuser of SBE, so let me see if I can shed a little light.
If you're on the screen where you're supposed to select a graphic file to import into SBE and only see blank tiles, then a) you're not looking in the right place; or b) there are no graphic files in that directory that is compatible for viewing on SBE.
These are the type of files that SBE can handle: *.dxf;*.eps;*.ai;*.bmp;*.tif;*.gif;*.pcx;*.tga;*.jpg;*.pcd;*.pct;*.psd;*.cmx;*.ps; But I'm going to tell you right now, that not all of those are vector, so make sure if you're wanting to cut something you're importing, it needs to be in vector format (because the vector engine in SBE sucks).
Is this what your screen looks like?