Forgetools 3 is pain. I can give you instructions and possibly the old particle forge at least. Forgetools 3 as opposed to the old forgetools, is that it finds the game's directory and it uses those files. The old forgetools used only what you put in with it, meaning, if you had the necessary files, it would work even if you did not have the game installed on the comp.
Galaxy Forge 3 should work regardless of what you have on the computer.
Particle Forge 3 is the real pain of forgetools 3. Do you want particle forge 1.6? It still works just as well as PF3, just a couple of crash issues are the only noticeable difference. if you wish to know things about any PF, I can give you just about any info regarding it.
Forgetools 3 is just a .rar, so you should have extracted it onto your desktop. Copy d3dx9_36.dll from your sins directory and into the PF3 folder. It should run then. Post again if the problem persists.
Does this help/make sense?
