"What are the URLs of the individual mobile web pages that I create?"
Two different ways to find these:
1) Access your mobile site from any browser, mobile or desktop, and click through to a desired page. The default format of that page's URL will look something like: http://mywebsite.prohost.mobi/1234. There may be some tracking code published after the numeric page ID in the URL - this code can and should be ignored when embedding the page's URL elsewhere.
2) Make use of the SEO friendly page names. Outside of being a HIGHLY recommended best practice, it also makes it much easier to manage page URLs. If you create a 'Page Title' or 'Content Page' element and enter in 'sales' as the SEO friendly URL, that page can then be found at: http://mywebsite.prohost.mobi/sales.