hi, i want to rename files in a directory looking like this:

Mvc-001.jpg
Mvc-054.jpg
Mvc-351.jpg
Mvc-672.jpg

look like this:

001s.jpg
002s.jpg
003s.jpg

by watching the date and time of creation. So when i took a picture on 23th september 2001 at 22.15 and 1 on 3th september 2001 at 22.16 the first is named 002.jpg and the second 001.jpg