Help with placing a link button

Can anyone tell me how to get a “Max Button” link to locate in line with a text? This plugin makes great button links but I can’t figure out how to locate them on my page (left to right) They seem to always create a new line and adjust to the left side of my page or post.

I’m putting in: Membership is FREE [maxbutton id=”4″]

I get the button every time, but its on a separate line.

You can see the result at http://livingston-chess.org in the home page.