Open up the image you want to animate in Image ready.
(to open image ready from photoshop press ctrt+shift+m)
now select the text layer you want to animate
now have you animation pallet open
click the duplicate button
now goto the text layer u want animated again and click the eyeball
go back to the animation pallet and click tween
set the setting to 20 to 30 frames( once you get use to making animation you can just mess around with it and set to whatever) and select tween with previous frame...
press ok and now go back to your text layer and click the eyeball button again...(to where it is visible)
go back to animation window and tween again with same settings as before
and you now have an animated pic....to save it..goto file..save optimized as and leave it as the .gif file format.
and your results should look like this