I came across few nice tools to embed Flickr Photos in your blogs or myspace pages, I will make a list of them here and update the post with new tools whenever i find new ones.
Pictobrowser: Easy to use interface, you need to enter your flickr username first and then select tags or sets you want to embed. You will get the code to embed in your blog. This script will generate Flash slideshow
flickrslidr: This will generate flash code to embed. All you need to do is enter the flickr URL address, photo set or group you would like to embed along with some options like width and height.
Flickr Slideshow Generator: Enter either userid or set id or tags to get the slideshow in a Iframe.
Flickr Slideshow web widget: This is a good option if you want to custmize your slideshow, there are a lot of options to customize.
SlideFlickr: Slideflickr is the new service for embedding Flickr photos as slideshows in myspace profiles or blogs. This new service is extremely easy to use. Enter the flickr username, or group or set URL and you will be provided with the embed code.
123Flickr.com: 123Flickr.com like the name it generates a flickr slideshow widget in seconds. Enter your flickr username and select how many photos you want to embed and click generate gallery to get the embed code. The widget shows thumbnails of the photos, when you click on a photo it opens a slideshow with navigation buttons on left and right side (mouse hover to see these).
Let me know if you find a slideshow generator, i will include here.