If you still have the driver CD for the TP-Link wireless adapter, get the driver off of that, then you will want to get the .inf and .sys files that is part of the driver (depending on how the driver is provided, you may need to use "unzip" to get the driver from the installer) package.
Then you will need to load it using "ndiswrapper".
$ sudo ndiswrapper -i *.inf
$ sudo modprobe ndiswrapper
$ sudo echo "ndiswrapper" >> /etc/modprobe.d/modules
I know these are terse instructions, but let us know if you run into any problems.