(very incomplete)
1.7.12 (4/12/01) 
- fixed convert resize bug (added round())
1.7.11 (2/16/01)
- fixed some comment issues
- changed some cookie stuff
1.7.10 (2/10/01)
- cleaned up the way my_convert_path works for convert mode
1.7.9 (2/5/01):
- fixed a bug that caused some Mac browsers to not do thumbnails right (i.e. a href=".thumbnails..." borked)
- moved $thisfn into .blorpconfig.php
1.7.8 (1/27/01):
- fixed some security holes
1.7.7 (12/25/00):
- added zip/arc/arj/lha/lzh/rar support (just links to downloads like movies)
1.7.6 (12/20/00):
1.7.2 (12/18/00):
- added comments support (stored in .comments), optional ".comments/all" writing
- added thumbnail generation options ("convert","gd","user",or "none")
1.6.9 (12/17/00):
1.6.8 (10/21/00):
1.6.7 (10/16/00):
- image rescaling lets you specify maximum in two dimensions
1.6.3 (10/11/00):
- made directories in table instead of directory listing, optional directory thumbnails
1.5.16 (10/1/00):
1.5.9 (9/10/00):
- made configurable via config file
1.5.5 (9/9/00): 
1.1 (6/6/00):