Q: What's going on with iWeb?   OS X 10.6.8   iMAC

What version of iWeb do you have, V2 or V3?  Do you have a hosting service to publish you website to?

What problem are you having with publishing the 2 new pages? 

Not knowing what your exact problems is here's a guess at a fix: try using the File ➙ Publish Entire Site menu option.

To be more specific: A few years ago I published my website (billcannandesign.com) using iWeb, version 3. It consisted of 17 projects documented by photos and text. When I tried to add the final pages (OXFORD & TREASURY) only the text published, no photos. All photos used were edited in iPhoto. I understand APPLE does not support iWeb any longer so that leaves me with an incomplete web site. I use Go Daddy to host my site. How can I solve this problem?

Have you tried using the File ➙ Publish Entire Site menu option?

Are you able to publish your site to a folder on your hard drive successfully?  If you can then the problem lies with the uploading of the files and not the creation of them.  You may have to start using a 3rd party FTP client like Cyberduck, Transmit or YummyLite.

Another option is to use an optimizing app to optimize and upload your web pages so that they will load faster in the browsers.  I use Web Site Maestro which after the first publish and upload will upload only those new or modified files.