I'm downloading v3 as I write this - for me, downloading anything as large as a CD from Megaupload can be very hard - the download speed is sometimes very slow and I regularly get "file is unaccessible at the moment" messages. So, don't take long pauses between new review and feedback as a lack of interest.
And honestly, subtle changes are hard to notice unless you have a trained year and a good audio set. I'm going to compare v2 and v3 in the coming days, but on the other hand, I'm not exactly familiar with audio - I can give feedback on what sounds "right" to me, rather than comment in detail what should (or shouldn't be fixed).
Besides, if you don't share your work, then even fewer people would be able to hear and enjoy it. I understand how bad it is to work on something and to wait for feedback, and there to be little (or non). But at least some of us here on the board have heard the restoration efforts and we love 'em, so the work counts.