Colin, we have just updated the help files to better explain the program behavior related to generate/upload modified files only. You should be able to have a pretty fast generate/upload process if you just add images (with no changes which would affect all other files).
GENERATE MODIFIED FILES ONLY
http://www.helpconsole.com/Shozam/default.aspx?page=5Gallery-General-Option.aspx
Technical Details
- If Album moved up/moved down or Image moved up/moved down, generate every HTML files + Theme folder + Intro flash images.
- If an Image changes (like: rotated, cropped, compressed), generate that Image + Theme folder + Intro flash images.
- If an Image adds/deletes of the Intro Album, generate that Image(s) (if image is added) + HTML files + Theme folder + Intro flash images.
- If any Image changes of the Non-Intro Album then generates Image(s) + HTML files.
- If Global Settings changes like Link, Label, Tag, HTML, Exif, Right click protect & Protect then generate each HTML files.
- If Global Settings changes like Image Compression, Watermark then generates each Images of the gallery.
- If Gallery title or Gallery path changes then generates each & every thing.
- If Theme changes then generates complete Theme folder.
- If previously selected Custom Theme or Embedded Theme not found then generated complete Theme folder.
UPLOAD MODIFIED FILES ONLY
http://www.helpconsole.com/Shozam/default.aspx?page=6Upload-Basic.aspx
To Upload only recent files to the Web server:
- Check this checkbox
- Shozam will compare modified date & time of each file with the date & time for the respective files on the Web server
- Shozam will not upload local files which have the same timestamp (or are older) than the respective files on the Web server