Hi Stee1hed,
You can use runtime to run executables. They aren't used to run development VIs or .llb files. In your case, i think you are creating a llb file with all the sub vi's by saving with options, you are not creating a executable. To be able to use the runtime you could create a executable and include all the subvi's or the llb as support files.
Hope this helps,
pravin