Creo que llegue tarde pero aun asi dejo algo de codigo para quien le sirva.
Código PHP:
<%
MyDirectory = Server.MapPath("images/")
Set MyFso = CreateObject("Scripting.FileSystemObject")
Set MyFolder = MyFso.GetFolder(MyDirectory)
Set MyFiles = MyFolder.Files
Response.Write("<table>")
Response.Write("<tr>")
For Each MyFile in MyFiles
Response.Write("<td><img src='images/"&MyFile.Name&"'></td>")
MyCounter = MyCounter + 1
If MyCounter Mod 3 = 0 Then Response.Write "</tr><tr>" End If
Next
Response.Write("</tr>")
Response.Write("</table>")
Set MyFile = Nothing
Set MyFso = Nothing
%>