Note: The default theme is styled to look similar to AIM 6.0. No changes need to be made to use that theme.
Follow the steps outlined in Using a Theme that Someone Else Has Created, replacing baseResourceURI and AIM.widgets.widgetName.appearance.styleSheetURI with the following:
Minima
var baseResourceURI = "http://o.aolcdn.com/aim/web-aim/minima/"; AIM.widgets.widgetName.appearance.styleSheetURI = "http://o.aolcdn.com/aim/web-aim/minima/minima.css";

Palo Alto
var baseResourceURI = "http://o.aolcdn.com/aim/web-aim/palo-alto/"; AIM.widgets.widgetName.appearance.styleSheetURI = "http://o.aolcdn.com/aim/web-aim/palo-alto/palo-alto.css";

Urban Legend
var baseResourceURI = "http://o.aolcdn.com/aim/web-aim/urban-legend/"; AIM.widgets.widgetName.appearance.styleSheetURI = "http://o.aolcdn.com/aim/web-aim/urban-legend/urban-legend.css";

XOXO
Note: There are two versions of XOXO. One uses 24-bit PNGs, which MSIE 6 doesn't support. So, there is a version with solid backgrounds for that browser.
if(navigator.userAgent.indexOf("MSIE 6") > -1) {
var v = 2;
} else {
var v = 1;
}
var baseResourceURI = "http://o.aolcdn.com/aim/web-aim/xoxo_v" + v + "/";
var AIM.widgets.widgetName.appearence = "http://o.aolcdn.com/aim/web-aim/xoxo_v" + v + "/xoxo_v" + v + ".css";

