I dont even see the sidebar code on that page. When you published it did you select a different template?
Start by sorting out the validation errors on the page.
I did not select a different template? I don’t know how to do that for an individual page. When I view my website on a macbook pro the sidebar is at the center bottom of the page and on a PC it is not visible?
The first step to having a design display consistently across all browsers is having valid code. The page you referenced currently has 342 validation errors:
http://validator.w3.org/check?uri=http%3A%2F%2Fnatesyouthtips.com%2Finside-the-youth-worker%2F&charset=(detect+automatically)&doctype=Inline&group=0
Correcting the errors may resolve your issue. At the very least, it will be easier to troubleshoot.
How do I know what #line I am looking at when I am looking at my code. For example, where is line 70?
Switch on “Show Source” with the validator, or use this link:
http://validator.w3.org/check?uri=http%3A%2F%2Fnatesyouthtips.com%2Finside-the-youth-worker%2F&charset=%28detect+automatically%29&doctype=Inline&ss=1&group=0&user-agent=W3C_Validator%2F1.781
This will show you the specific lines in the source output, then use it as a guideline to find the offending points either in the page content or your theme’s template files.
There is definitely some hunting required.
Also consider getting a text editor that shows you the line numbers, there are many available, such as NotePadd++ or Vim.