I would like to display "similar images" on the image page. I understand how to include contents of zenpage items but not search page results.

I know how to link to a search page, e.g.

printCustomPageURL( "More orchid images", "/galleries/page/search?words=calopogon&tags=orchids&searchfields=custom_data,desc,filename,tags,title&inalbums=0&inimages=1");

Is there a relatively easy way to actually display search page image results instead of the link?

I am not programmer but can work from a basic example if provided.

You mean a list of "related images"? Easy is relative as you have to use the search class for this.