What do you mean u dont know how to make gif's?
U mean you dont know how to export them as a gif?
If your talking about making sprites for a game, first make sure the picture your editing is a layer, then delete unwanted background. You should be able to see a grid on the parts that have been deleted.
Other options for example are masks, were its not deleted but "masked", very handy for altering later on.
Right when your finished pick "save for web", make sure gif is selected, tick the transparent box, leave the matte and then save.
Youve made a transparent gif. Imageready is only really used when animating gifs and is really good for slicing and exporting graphics for web sites.