Rip -
There are a lot of ways to do that, I prefer to use php to add new content each day by looking at which day it is. The absolute easiest way to do it, is to have all your content uploaded and a new picpage.html for each new addition. i.e. picpage1.html picpage2.html picpage3.html and so on. Then use crontab to copy the new page over at midnight each night. And presto it looks like you are updating each and every night. Nice thing is you can do all your page updates on one day, and the script does your updates for you each day. The crontab would look something like this:
0 0 * * 0 /home/yourname/mov_sunday.sh
0 0 * * 1 /home/yourname/mov_monday.sh
0 0 * * 2 /home/yourname/mov_tuesday.sh
0 0 * * 3 /home/yourname/mov_wednesday.sh
and so on
the mov_sunday.sh would look like this
/bin/cp -f /home/dir/somefolder/picpage2.html /home/dir/somefolder/picpage.html
and you would make one for each day of the week. That would give you 7 days of automatic updates with no intervention on your part
Sorry it's so techy, I'm sure your server support team can add it for you if you have not done crontab stuff before.
Tim