custom slideshowpro/thmgrd: multiple keyword filtering

This is my second try at this job. The client had some delays and I was not able to complete the bid before it expired so I am starting over. He is ready to go now, sorry for the delay. I am building a set of slideshowpro galleries for a photographer -------------- The client requests one special gallery : "i would imagine at most 20-30 keywords that describe our photography. splash screen would be some instructional text, keywords presented on the screen, the user can select up to 10 keywords or less. the movie builds the image presentation and displays the thumbnails. at the end of the slideshow, they would be prompted to 'explore again'." -------------- so i need to have this gallery work in tandem with the other features i will be providing on the other galleries. I will be creating custom: • next/previous buttons • hide/show thumbnails button • play/pause button • fullscreen the client requests a working mechanical, and then we will skin it after it works as he expects. i am attaching a mockup of what the gallery style is right now, but he is still going thru final design approval. one thing shown in this mockup that is NOT happening is the widescreen treatment. the width of this will be 960 or 980, not sure which they are using. this project will go live november 15