AbleCMS is not open source. It is free to download but may not be publicly distributed anywhere but through this web site. I put a lot of time into this project so feel free to make a PayPal donation if you find it useful. The link to make a donation is at the top of this page.
Download AbleCMS Version 0.15 (bug fixes, change settings, delete image folders)
Download AbleCMS Version 0.1 (bug fixes, set main image size, add and delete pages)
Download AbleCMS Beta (limited options, buggy)