Unfortunately, that's how it works... Hand-written notes synced to Evernote are saved (stupidly, IMHO) in S-Notes own format, hence the SPD file that gets attached, so the only thing you get in Evernote is an image of the note that's not too big. If you click on the image/spd file in your Note, it opens up in S-Note for editing/viewing, but on a PC or other Evernote client, you can only see the image and download the SPD file, although I don't know if there's a viewer for Desktop or anything like that.