Hang on, what? I've never seen that photo before!
This is the photo you gave me: https://www.facebook.com/photo/?fbid=4448446591853701&set=pcb.4448446775187016
Then no, you've done something wrong. Read over the instructions again:
I don't know for certain, but I think perhaps you forgot to check the "Colorize" box.
I'm very proud too.
I don't think they're worth the cash, no. But if you have cash to splash, go for it.
I assume you mean a new screen? Not a whole new desktop computer?
Maybe two Hue/Saturation layers?
First Hue/Sat layer on "Soft Light" blend mode, with no adjustments.
Second Hue/Sat layer on "Multiply" blend mode, with the "Colorize" checkbox checked, with 30/20/+30 for the three sliders.