Dnark:
Saving as an SVD file by selecting sound as filetype has always saved the entire user bank for me. All my user patches, perfs, and rhythm sets. I don't think you can save one single patch as an SVD using the XP. It just saves the whole works, unless I've done something wrong, but I couldn't find any help in the manual that might suggest that I'm doing something wrong or that there is a way to save a single patch other than the way you've described.