Hi
To get image of your graph you have to just create an Invoke Node (Create >> Invoke Node >> Get Image)
Get Image give you a cluster with Image Data.
You can save this data as picture with functions from Programming>>Graphics & Sound>>Graphics Formats.
To create HTML file you could use Report Generations functions.
If you want just save waveform data as numbers you could use Array to Spreadsheet String.
If you will be more specific I could focus on it and try to give you better description how to solve your problem.
bogdani