Google Image Search Optimization

Sir,

I want to optimize my website for google search images which requires me to construct proper image reference in XHTML.
For Google-sensitive image reference, i have to mention 5 key items i.e src, width,height,alt and title.
but im get confused where i have to mention the same in WPPA+ settings for each image.

thank you

http://wordpress.org/extend/plugins/wp-photo-album-plus/