Hi,
You can go the pickit2 route as there are a number of contributors here who can and would be happy help you out.
But you have a Melabs serial programmer, and therefore you already have a very capable piece of programmer hardware. Compiler wise the step from stamp to PBP is very straightforward. Take a look at Mecanique MicroCode Studio as an IDE. Especially take a look at the ICD demo, which will take your learning curve almost vertical.
Furthermore as you are already into Basic why not go for it and take one of the Melabs development boards, I went the whole MeLabs route with the X1, and never regretted it, although it may be a bit dated now(certainly very battered).
Seems a shame to throw the U2 programmer away really.
Duncan
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