I truly am FURIOUS with tumblr getting rid of the slideshow option. However, none of the other blogs have it either. The software sites that allow you to create a slideshow seem to work well with Blogger but I'm not sure if they work at all with tumblr. I tried one last night and it was just full of fail for tumblr. If this doesn't work either, I'm slowly moving everything over to blogger. I'll get the site for y'all and post links to the blogger posts here.