Hi - I can't get mine to work yet but I know how to move files.
after you find your three plugins and make sure you have extracted (unzipped) them.
first - find where you have paint.net open it going to computer first - then open it
and look for the EFFECTS folder - that is where you will be going to go to plugin.
There are different ways to do this - but I'm giving the simple (I think) way.
Go to your first Plug-in highlight it with a left click and then double right click - you
should have a list of things you can do to the file. I would click on COPY then you
can go back to Paint.net EFFECTS - open EFFECTS folder and double right click on a clear
area of your screen - you see one of the options is PASTE - click on that and you should
see your first Plug-in. Do it for the other two. Look where they were originally (on your desktop?) and look for small text files on desktop that might be for them - if you find any,
copy them and paste them in effects and read each one before you use your plug-ins - mine
did not have one. Then open Paint.net and open - check each plugin before you delete the files sitting on your desktop - but if they show up and work on paint.net you don't need the original ones anymore - I hope it works.
snv33803@verizon.net