5 Column Class code

I am trying to do a banner across my minium pro theme with 5 images. The easiest way I thought was to do a new widget section with a text box widget with column classes.

From my research Genesis only supports for 4 or 6 columns not 5. Does anyone have experience with this and know a way around it?

I visited this website and tried their code but it didn't work.

Genesis 2.0 Drops Fifths from Column Classes

I have two versions on my website now, if you go here you can see the class with one-sixth and one-fifth below it.
http://blog.fogelman-management.com/

Code for one-sixth
<div class="one-sixth first"><center></img></div>
<div class="one-sixth"><center></img></div>
<div class="one-sixth"><center></img></div>
<div class="one-sixth"><center></img></div>
<div class="one-sixth"><center></img></div>
<div class="one-sixth"><center></img></div>

Code for one-fifth
<div class="one-fifth first"><center></img></div>
<div class="one-fifth"><center></img></div>
<div class="one-fifth"><center></img></div>
<div class="one-fifth"><center></img></div>
<div class="one-fifth"><center></img></div>