Have you resolved that yet, Mike?

If not here's one example how to achieve the required result:

1. Modify and/or add to your portal's default.css file in line 1206 below values:

.dnnLabel {
    position: absolute !important;
    top: -15px;
    width: auto;
}

2. Add below class to the portal's default.css file (or skin.css or module.css file according to DNN styling priority rules depending on your needs):

.RadPicker table.rcTable td {
    padding: 20px 0 !important;
}

3. Tweak the values in a browser's developer tools (e.g. Firebug in FF) to your liking and then apply them to the css file(s).