While trying to download LW Pro, both with running it or saving it, I get a message saying

Internet Explore cannot download LimeWireWin.exe. from sales.limewire.com.
The data area passed to a system call is too small.

I paid for this and now it seems I can't download it. And the only reason I paid for it is because I couldn't download the Basic either, because it told me invalid certificate or something. Is there anything that can make this work?