Msg#: 3905336 posted 5:21 am on May 2, 2009 (gmt 0)
Google doesn't currently use the title attribute in their organic alogrithm, and I assume the same is true for Image Search - but I've never tested it. It sure wouldn't hurt to add it to your slideshow - in fact it could be a nice enhnacement for the visitors.
However, the alt attribute for the img element is quite important in Image Search - some go as far as saying it's "mandatory", although I feel that participation in the enhanced image labelling project might bypass that a bit.
If you are trying to get images from a slideshow into Image Search results, I'd suggest making sure that a visitor could come to that page from search and see the correct image on display.