how to create a blogger widget - video tutorial

This thing is just great. However it does only work for me when I remove the "-h" in the image links right after the "s1600", e.g.

http://1.bp.blogspot.com/_Sw1PA7rBruI/.../s1600-h/pic.jpg

changed to

http://1.bp.blogspot.com/_Sw1PA7rBruI/.../s1600/pic.jpg

I have to do it manually in the posting editor via HTML for every image.

Is there a way to do it dynamically, too?

Then I would like to get all my pictures in one post grouped so I can connect them with prev and next buttons. For this option it is not enough to just put the
rel="lytebox" tag
right after the image link but the
rel="lytebox[sampletext]".

Is there a way to maybe put something like
rel="lytebox[postingtitle]" right after each imagelink? That way all the pictures belonging to one posting are grouped.

All these features can be found in a wordpress plugin at

http://grupenet.com/2007/08/03/wp-lytebox/

but is there a way to get somethig similar working on blogger?

Best regards.