If you have a Canon point-and-shoot, you can actually download a firmware upgrade called CHDK (just Google it). This firmware, which is put on the SD card and does not permanently affect the camera, allows you to install an intervalometer as a sort of 'app'. It takes a bit of messing around to set up for the first time, but once you get it to work, it's quite easy to use. I used CHDK for
this video.
As for software, if the images are are numbered sequentially in the file name (img_0001, img_0002, img_0003, ...), it is really easy to import them into video editing programs like Sony Vegas and Adobe Premiere. Personally, I use Vegas. If you don't have either of these, I would suggest downloading the 30 day free trial for Vegas from Sony's website. That will give you plenty of time to throw the video together.
Hope this helps!