Hello, and welcome to the forums!
You don't need to be a corp. to have a tax id#. You can get one as a partnership, if you would like/need one.
Here is a
link to the irs site about how to apply for a tax id#. The easiest way is to download the form from the site. Fill it out, and call the toll-free number. When you call, just give them the info from the form that you filled out. They will issue you a tax id# right over the phone. Then you just mail in the completed form. It's really pretty simple.
Hope this helps you out, and welcome again!