Well actually you do not need ndiswrapper, as Linux supports this model.http://wiki.debian.org/rtl818x
The kernel module which is responsible for your card is: rtl8187
Loading and unloading the driver is done by (as root): modprobe rtl8187 / rmmod rtl8187
So maybe try to uninstall ndiswrapper and try to load the module again.
If on "ifconfig" the wlan0 or any wireless interface shows up, it usually means it is supported, but configuring it to access the internet is another story.
I never used BAMT, but it says its based on debian, so you would need to search for help on this driver: RTL8187 for debian.
But as I looked online, debian is already supporting your card so I dont know why you installed ndiswrapper, as it only messed up your system.
You can install the latest wifi drivers from here in case the kernel module does not work(but it should): http://linuxwireless.org/en/users/Download
There are some instructions on how to do it there, but it will take a while.