I must say that I like this puzzle. It was really fun to solve. As for hints, the wikipedia article for cross sums gives you several possibilities for combinations under the "Possible Sums" section.
Firefox allows you to type the answers in (Does not work on IE). Click on the box until a grey box with a white question mark appears. Type in the number and it should appear. (Only works with main keyboard numbers. Not numpad). To delete a number, click on the number or replace it.
An individual by the name of Adam sent me a PERL solver. I will test it out and post it later.
Answers / Solutions:
Answers are usually (and will be) posted in the comments section. Full answers will be posted on the solve puzzles page.
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