> I'm trying to get all the images from a site that
> follow this structure:
> 
> <http://www.example.com/download_example.php?file=*.j>
> pg
> 
> Where * is a wildcard that varies in size. All

You can NOT use wildcards in urls. You MUST use a valid url in every call to a
webserver.

You must either spider the site to get valid urls or guess: Number sequences:
How to mirror only files/URLs using a certain ID/number range -
<http://httrack.kauler.com/help/URL_number_sequences>