Have you had a chance to review the chapter titled "Setting Up the Provisioning System" in the BladeLogic Installation guide? It starts on page 159 of the PDF file.
This documentation covers the PXE setup, configuring DHCP, configuring TFTP, stocking the data store, JumpStart setup, and NIM setup.
The BladeLogic Users Guide also has a chapter titled "Using Provisioning Manager" which covers such topics as configuration, preparation of system packages for Linux, Windows, Solaris, and AIX.
Right... will have a look!!!