You'll need a few graphics plug-ins that you can easily download from these programs respectable websites
Secondly,
You only need enough RAM to support the program while its running, its pretty big and can slow your computer down a great bit.
The proton beam is actually made up of a few different layers, layer 1 is the yellow of the beam, layer 2 is the orange coloring, and third is the blue “electrons” stream. These can also be created using what you already have in your program. I dont know much about PSP7, but I know a little for Photoshop, personally I dont create proton beams, just web graphics.