I found this neat little add-in for FrontPage that allows you to create charts in Windows SharePoint Services.
DescriptionThe Chart Web Part can be used to generate charts in the Windows SharePoint Services environment. The Web Part supports data coming from XML files and Web Part Connections, and it generates charts as either an server-side images or as VML. This Web Part works great in complementing the Data View Web Part to provide a powerful data reporting story
If you’d like to download this then go to http://www.microsoft.com/frontpage/downloads/addin/searchdetail.asp?a=701
Let me know how you get on with it.