Hi mcmillanc08, I've read your 2 posts. Yes, the security key is the same as your password. The password is case sensitive, you need to be careful in entering the password. To be sure that you are putting in the right password, you may access the router page.
Check this link for the steps: http://kb.linksys.com/Linksys/ukp.aspx?vw=1&docid=476326f36c294e579ba6691a8db5411e_3698.xml&pid=80&respid=0&snid=1&dispid=0&cpage=search
Title: Checking the Linksys router’s wireless settings
Article ID: 3698
Is the wireless light lit up? What is the color? Is it flickering?