[John Lester]

To get rid of the boarders between the tabs use this: (I think I used the !important correctly, been awhile since I've messed with css )

#profile_tabs dl.tabslight dd {
    margin-right: 0px !important;

Still looking into the other issue and will reply when/if I figure it out

--------------- Added [DATE]1403222013[/DATE] at [TIME]1403222013[/TIME] ---------------

Ok along with the code in my previous post try this in your additional.css;

/*
.memberprofiletabunder {
    background-color: #2E3539;
    background-repeat: repeat;
}
*/

and

/*
#message_form .subsectionhead {
    border-right: 1px solid #8F3F1F;
    border-left: 1px solid #8F3F1F;
*/

and

.memberprofiletabunder {
    height: 10px !important;
    font-size: 5px;
    display: inline-block;
    float: left;
    width: 100%;

Let me know if you like the way it looks.