[Koha] can koha calculate fines?

Hi.. 1. I am using koha v1.2.3 on windows.The problem is can Koha calculate fines if items on issue are overdue?When I return the borrower item which are overdue there is no fines or charges. As you said before, fines are worked out on the basis of borrower type and item type and it is like a matrix. I don't understand..What do you mean 'like a matrix'.Can you explain more on that? 2. Can I change cardnumber default using our own member number which have 7 characters for student and 4 characters for staff? _________________________________________________________________ Using a handphone prepaid card? Reload your credit online! http://www.msn.com.my/reloadredir/default.asp