According to you:
"This is the older version of Universal Email that was used to create this Solution Recipe, you would only be able to make use of it if you have it already. The new version of Universal Email is v4. You can use this to update the Solution Pack but it was not created with this version though and you may have issues updating the UE server behavior."
Your site only has UE4 available which is not guaranteed. Do you still sell UE3