E-Mail-Messages // not customizable?

Hi folks,

I'm using WP 3.2.1 & Marketpress 2.5 - and i'm quite happy with Marketpress.

Almost everything done - i see now, that I can not change the Text of the E-Mail-Messages... There is simply no Save-Button! Tried it with FireFox & Chrome on my Mac and Windows.
All the other Plugins are turned out.

What can I do....?

Thanks in advance,