Problem with sending embedded images via email

Hello there,
I have developed a small newsletter application for my client. It retrieves html content stored in the database and decodes it before sending the email. Everything works fine but the images from the server do not embed. I have realized that this might be because the e-mail contains the image source as
src="/nlimages/Contact%20Us.jpg" instead of the full path
http://musiccultureart.in/nlimages/Contact%20Us.jpg So I was wondering if I can append "http://musiccultureart.in"  where ever there is an src tag before decoding the html and sending it. Is this possible?
My vb code
Imports System.Collections.Generic Imports System.Linq Imports System.Web Imports System.Web.UI Imports System.Web.UI.WebControls Imports System.Data Imports System.Collections Imports System.Da ...