[LifesGreatestGift]

Create a profile field with all zodiacs in lowercase in a single selection drop-down.
Then create all the zodiac images, name them the same as the profile field names. (example leo.png and the drop-down selection has leo in it) Upload them to your site. (remember the directory)
Then create a conditional in postbit (or postbit_legacy) like the following

<vb:if condition="$post['field11']">
<img src="http://www.yoursite.com/path/to/zodiac/images/{vb:raw post.field11}.png" alt="{vb:raw post.field11}" />
</vb:if>

Hope that makes sense