Assistance Please?

I was hoping someone would be able to help me out...I have been through them mems here and though found a ton of useful info not what i was searching for. What i wanted to know is if there is any tutorials on making Blinkies and Pixel to Blinkies...I do know how to edit pre existing Blinkies such as adding text to them but i'd like to learn how to make them from images i have..

I use Photoshop 7.0 and image ready

Thank you to anyone who can lead me in the right direction...