Is there a styling guide/tutorial for the WebDataMenu? I attempted to create my own style as follows:

 .igdm_ControlHorizontal      /* The actual control properties */
{
 cursor:default;
 float:left;
 white-space:nowrap;
 font-family:Verdana,Sans-serif;
 background-image:none;
 background-color:#666;
 border:0px none;
 margin-left:1px;
}
.igdm_MenuItemHorizontalRootLink   /* The style of the links on the main toolbar*/
{
 text-decoration:none;
 font-family:Verdana,Sans-serif;
 font-size:12px;
 cursor:default;
 color:#FFF;
 font-weight:bold;
}
.igdm_MenuItemHorizontalRootSelected  /* The style of any selected links without any children  */ 
{
 background:#666;
 border:none;
 color:#55AE3A;
}
.igdm_MenuItemHorizontalRootActive > a  /* The style of any top-level link */
{
 color:#FFF;
}
.igdm_MenuItemHorizontalRootActive   /* The style of the selected top level item with children */
{
 background-image:none;
 background-color:#666;
 border:none;
}
.igdm_MenuItemHorizontalRootHover   /* The style of the top level items when hovered */
{
 background-image:none;
 background-color:#666;
 border:none;
}
.igdm_MenuItemHorizontalRootHover > a  /* The colour of the top level item links when hovered */
{
 color:#55AE3A;
}
.igdm_MenuGroupVertical      /* The style of the child items */
{
 background-color:#DDD;
 padding-left:0px;
 cursor:default;
 list-style-type:none;
 padding-top:0px;
 margin:0px;
 border:1px solid #FFF;
}
.igdm_MenuItemVertical      /* Don't know! */
{
 margin:0px;
 color:#333;
 background:Transparent none repeat scroll 0 0;
 padding:5px;
 border:1px solid transparent;
}
.igdm_MenuItemVerticalSelected > a   /* The style of the selected child item */
{
 color:#000;
}
.igdm_MenuItemVerticalHover     /* The style of the child items when hovered */
{
 margin:0px;
 background-color:#FFF;
 border:1px solid #000;
 font-weight:normal;
}
.igdm_MenuItemVerticalHover > a    /* The colour of the child level item links when hovered */
{
 color:#55AE3A;
}

Unfortunately these changes are not visible in IE6? They work fine in FF, IE7, IE8.

Are there any guides for styling other Infragistics controls, such as the WebDataGrid?