It's the fact that the theme uses custom template files and aren't updated when the mod is installed.
Do me a favor and look in the style.css and see if this is in there:
/* This is for the post author information on each post. */
ul.postauthorinfo
{
margin: 0;
padding: 0;
list-style-type: none;
}
ul.postauthorinfo li
{
font-size: x-small;
text-align: left;
margin: 0;
padding: 0;
list-style-type: none;
}
If it's not, then add it into the bottom of your style.css file. After I get compatibility for these two mods applied, I'll give a link for you to download the updated template files.
The real hell is your life gone wrong.