What exactly did you need help with? Are you having difficulty removing the blue backgrounds, or in the actual construction of the plug-in, or what?
There are a couple tutorials on these subjects.http://fxhome.com/forums/viewtopic.php?t=3082
This is on creating an alpha channel for the image in Photoshop, which is required to remove the background once the plug-in is built.http://fxhome.com/forums/viewtopic.php?t=5410
And this one is on the actual plug-in building process.
Maybe you have alreaady seen these. If not, take a look, as they should answer your questions. If you are still confused over something, let me know what specifically is giving you grief, and I'll be happy to help you out with it.