You can try Jobdao Flash Chart, I think it's fit for you and it's easy to use.
I am using the flash chart now ,I think it may fit for you ,it is very easy to use .What is more ,it can easy to creates dynamic charts in the Macromedia Flash SWF format.
Below is the information about Jobdao the flash chat:
Jobdao Flash Chart can transforms your data charts into enjoyable and captivating communication. Data charts don't have to be plain and austere, they can be interactive experiences with attractive visuals and animation.We offer a number of other advanced features:

Jobdao Flash Chart is very easy to config and use. Your server need not render any image, there is no need for any Active-X on the server, all graphing happens on the client side. A Flash Player is installed on more than 98% of Internet-connected PC`s. Software based on the Macromedia Flash technology and may be used on any platform. Does not require knowledges of Macromedia Flash? Yes, it manages to make the creation of web-based charts and graphs a piece of cake!
Data source may be static file or a script (PHP, ASP, JSP, Perl, etc.). Using scripts, You can select data from any database, files or devices. Our software complete support for Unicode data (Chinese, Korean, Japanese, German, French, etc.).
Jobdao Flash Chart supports following chart types: bar, pie, line, hbar(horizontal bar) and fun. It create stunning rich media charts that present your data in an enjoyable and captivating experience.

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