I would like to share this info. In one of my tread ---> http://arduino.cc/forum/index.php/topic,85580.0.html
danimath recomend me to use Irfanview. I did download the program, install it, and run it... I try in one of my pictures taken by my digital camera. My original size is 1 Mbytes, and I re-size it... about 200 kbytes... Much better ... and the pictures still look clear and ok. The program is free
and here the link : http://www.irfanview.com/
Check it out...it will help me to post more pictures... faster uploading because I only have a...dial-up
I hope it will help you.