Here is a way to deploy Java 7 Update 15 through a MSI and using LANDesk

First download Java from Internet Explorer at http://www.java.com/en/download/manual.jsp both the 32-bit and 64-bit

Run the .exe on your computer then go to the Users folder C:\Users\"username"\AppData\LocalLow\Sun\Java

Underneath you will fine two folders names  jre1.7.0_15 and jre1.7.0_15_x64. Inside these folders you will find a MSI and a Data1.cab. Move these to your server share or wherevere you store your packages and then open LANDesk and make your MSI package. Make sure that you incude the Data1.cab in the Additional files tab.