There is no automatic way to create the table of contents, but you can create
one manually very quickly in OneNote 2007:
Select all page tabs in the section first. Then right click and choose:
"Copy Hyperlink to this Page". Then paste where you want the table of
contents to be. A list of links to the pages will be pasted.
There is another feature you can try out if you have not written the pages
yet, but want to provision them for the future:
If you have one page in a seciton and plan to create several pages later.
You can make a list of the page titles on the first page, select all of them,
right-click and click "Create Linked Page". OneNote will create pages with
those titles and link the list to those pages. This way you can provision
pages for the future that you want to fill out.
When you need to add new pages that you want listed in the table of
contents, just go to the page and create more linked pages the same way.