The homework for the XHTML class will not be graded. If you want someone to review what you have done, you should post your URL to the Web Design / HTML Forum. Make sure to indicate that you have a question or would like a review of the homework in your subject. I've written a how to page on posting to the About forums.
XHTML is just like any other language, practice makes perfect, and these assignments help you to put what you've learned to the test.
Once you understand the basic tags on a Web page, try putting up your first page. Remember, there won't be any fancy formatting, and don't be surprised if the text doesn't display as you expect.
Be sure to test your new Web page in your Web browser. Save the file as an XHTML file (use the file extension .htm or .html) and then open the page in your browser. Firefox, Opera, Safari and Internet Explorer all have an "Open" or "Open page" option under the "File" menu.
If you are using on online editor, you will need to follow the instructions there to preview your pages.
If your page displays in the Web browser (remember, the text may not format as you would expect, this is normal), you can upload it to your hosting provider.
Most hosting providers don't actually use FTP programs to upload files - instead, they use Web page forms to upload.
Here is a sample of how I handled the homework. You'd be surprised how simple it really is. And don't forget to view the source of the page (this option is usually in the View menu of your browser).