The important part is that there's no warrenty, but you can otherwise do whatever you want with the software. (Use it, sell it, publish it, modify it, sublicense, put it on a cd, burn the cd...). Just don't remove the copyright and license.
Copyright (C) 2001-2010 Ask Bjørn Hansen, Develooper LLC Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
If you didn't recognize it; this is the MIT License; one of the most developer friendly and unrestrictive licenses around.
You can take the software and do whatever you want with it. Build a service, distribute it on your spam-filtering appliance, make a million bucks, give changes back, don't give changes back - it's all allowed and encouraged.