First of all, thank you for Quick.Cart. It is perfect for what I need...
Define, what exactly you want to change. If it is language then find LANG folder, there will be one file en.php, open it with Notepad and translate it to your language. Or download already translated file:
kappaluppa - admin->categories->Quick.Cart-> edit (little button on righ)->)Change fields as you desire -> save (gray button on bottom )
That's the one, Claps... thanks!