Simple AppleScript Droplet to rename files

Avg Bid (USD)
Project Budget (USD)
$10 - $30

Project Description:

I'm need a simple droplet made with Applescript that renames a folder of files. The budget for this project is $10

I will drop a folder of images onto the droplet. The filenames of the images in the folder will always be the same. 01.PSD, 02.PSD, 03.PSD etc. However, the amount of images will always be different, there may be up to 50 files in the folder. (The images show a photobook design, the first and last image only show one side, but all other images show two sides of the design). The droplet will rename the images as follows:

01.PSD -> side_01.PSD
02.PSD -> side_02-03.PSD
03.PSD -> side_04-05.PSD
04.PSD -> side_06-07.PSD

the last image will be renamed with {(number of image x 2) - 2}, for example :

05.PSD -> side_08.PSD
20.PSD -> side_38.PSD

Technical requirements:
This needs to be working as a droplet, I drop a folder with images on it, and the files will be renamed.
The droplet needs to be working in Mac OS10.4 and the latest version of Mac OS

Skills required:
Linux, Mac OS, Software Architecture, UNIX
Hire robertphoto
Project posted by:
robertphoto Australia
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