To get rid of the root node [Site Map] I did this... after a quick google I found an article about hiding the root node from a SiteMap
It needed some modifying though as it gave me some problems when adding new pages but I posted the code to fix that
As for the separator I would suggest you either create your own control inheritting the SiteMapPath control and then just override the rendering to modify the separator, or if you don't have too many Master pages you could look at doing it in the codebehind of the masterpage itself something like this:
Protected Sub SiteMapPath1_ItemCreated(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SiteMapNodeItemEventArgs) Handles SiteMapPath1.ItemCreated
If e.Item.ItemType = SiteMapNodeItemType.PathSeparator Then
e.Item.CssClass = "cssClass"
I haven't tried it but I assume it would work..By the way the SiteMapPath control isn't a Telerik one so I am not sure if they will change it... You probably need to complain to Microsoft :)
Well I hope that helps...