Nope, no one fergits it.
But what you must understand is that paying for the software is only meant as a contribution to the project, meaning that you could have downloaded the FREE app instead of the pro one and still have the exact same app (aside from some additional ads).
You shouldn't have hurried on to buy something that you didn't know how well it worked (on YOUR machine) and stuff since there was a free version available.
As it is widely said throughout these forums, Limewire has diverse performances depending on the machine.