Go to the cave at the top of Dewford and as soon as you walk in there is a hiker, tak to him and he gives you it Jpg 40

Usually they are blue on the top, and have a yellow underbelly.

http://fatfinch.files.wordpress.com/2008/02/tomlin_blue_tit_450x338.jpg

It depends on your file system. Some filesystems are CASE sensitive but typically JPG and jpg are the same thing.

* matches anything. *.jpg would mean any file with a .jpg extension. 1*.jpg would mean any file where the name begins with 1 and ends with a .jpg ? matches any single character. ?.jpg would match a.jpg, 1.jpg, or F.jpg but not a1.jpg. Several ? wildcards can be used so that ??.jpg would match any jpg file with a two letter name.

http://www.tinsleytransfers.com/tribal_files/new-size/large/TL-610.jpg

The symbol on top