Ashton Cummings, PHP Programmer wrote the Kamikazee Comic Updating script used by Sam And Fuzzy. It looks good from the screen shots but I can't tell if it's a script that let's you load a bunch of comics into a directory where they'll be loaded in the future based on file format or one of those scripts where you have to punch in the date of appearance for each one.

Also key would be whether or not it "hides" future comics prior to their publication date.