You did not use the Debian package management system. For this reason Synaptic Package Management does not know the newly installed binaries.

A1: There is no logfile. If there was no error during compile you do not need one.

A2: Change to the directory with ndiswrapper sources (ndiswrapper-1.59) and issue
Code:
sudo make uninstall
Btw. you could create your personal packages, but if the ndiswrapper 1.59 does not work with your Windows driver it would not be worth the effort.