as for your first question, I'm guessing that you are using a previous version of nevostudio. Use your help menu to check for updates. With previous versions, you had to save the file twice. Once as xxxxx_0.png (or bmp, whatever), the _0 indicates that this is the appearance you want the button to have when it is in the unpressed state. The secone file is the same name with a different suffix xxxxx_1.png. The _1 is the picture in the pressed stated. This gives the screen animation when pressed.
Newer versions of NevoStudio do not require the dual file types anymore, but then again they are not animated either.
In response to the other question, see this link:
[Link: remotecentral.com]Chris