Slice Images in Photoshop

I need a whole batch of images sliced up in photoshop. The images can be downloaded from: [login to view URL] There are two directories there - christmas and new-accessories. All the images in both the directories need be be sliced. There are a few images with "multiple images in them" - they will need to get sliced as individual bits. An example of such multi-images-image is [login to view URL] Transparency will need to be put in / maintained - for example in [login to view URL] - the wig needs to be the image with everything else transparent. To give you an idea of the use of the images, they will be used in our app at [login to view URL] Please download the app and play with it to understand how the images are used before bidding.