TagLib# - MP3 Files, Tagging And Images.?

im using this MP3 tagging library called TagLib# or TagLibSharp.

Unfortunately the documentation is a bit patchy to say the least and their (Official) website, which contains all the documentation seems to have closed down, leaving me to download this MP3 tagging library from the link below.
http://developer.novell.com/wiki/index.php/TagLib_Sharp

Everything so far works, including tagging the 'Artist, Title, Album' etc. but I want to include an image in my MP3 files, like album art.I have found some sample code to read the image back from the tag using their library, I just can't work out what it would look like the other way around.

If filetotag.Tag.Pictures.Length >= 1 Then
Dim bin = DirectCast(filetotag.Tag.Pictures(0).Data.Data, Byte())
AlbumArt.Image = Image.FromStream(New MemoryStream(bin)).GetThumbnailImage(115, 115, Nothing, System.IntPtr.Zero)
End If

This code above will read an existing tag and load the image into a picture box called 'Album Art'.how to 'flip' it so that it would look something like ...

filetotag.Tag.Pictures = AlbumArt.Image

Obviously using the memory stream functions etc.