Wordpress slight theme modification

Hi I am using a wordpress theme that has a jquery slider at the top. (a demo of the theme here: [login to view URL]). When i write a post, i have the option of ticking "add to slideshow" and the post appears in the slideshow. However, I need to adjust the slide show so that it shows the last 3 posts instead of the ones I manually select. Please download the sample theme from [login to view URL] (its free for download) to test whether you can accomplish this. I will have several other projects coming in on a regular basis once you finish this. This one is a very small job but the rest will be big and I sure hopt to build a long term relationship from this point on. Also I need this done asap so please bid if youn turn this over in a few hours.