The footer code u change has nothing to do with Ad unit. Have you reinstalled the CSS for the unit? Here is the footer code if you wanna replace it
Code
/* Footer */
.bodylevel-high #rt-footer {background: url(../images/main-bg.png) 50% 0 repeat-x;color: #999;}
#rt-footer .title {color: #ccc;}
#rt-footer .title span {color: #999;}
#rt-footer a:hover {color: #fff;}
.bodylevel-high #rt-copyright {background: url(../images/footer-main.png) 50% 0 no-repeat;color: #9D3131;}
#rocket, #gantry-logo {background: url(../images/copyright.png) 0 0 no-repeat;}
#gantry-totop {color: #9D3131;}
#gantry-resetsettings a {color: #9D3131;}
#gantry-resetsettings a:hover {color:#fff;}
Try to reinstall all 3 css codes of REKLAMA, REKLAMAS, REKLAMASS