Recently active topics in PBwiki tagged with plug in

I'd love to add some Google Gadgets to my pages. However, the instructions just say to include the "script." Sorry. I don't know which text is the script in a Google Gadget. Can't seem find an explanation anywhere. When I click "View Source" is it the whole box of long text? Is it the xml link at the top? Maybe I'm the only one who doesn't know?

2 spreadsheet-plugin related questions: 1) Can I make the viewable area of my spreadsheet larger within the wiki page? 2) Can I link to files/documents from within a cell in the spreadsheet?