Before you can build the Bootloadable project, you would need to generate some linker scripts by running the mk.bat script, which is available as part of the Shared memory Bootloader project.
Read the datasheet for the example project to get more details. You would need to configure mk.bat file for the appropriate locations of the projects and then run it - that would generate the necessary scripts for the Bootloadable.
Thanks for your fast reply.
Effectively, I missed the pdf.
It works nice now, thanks ;)