Well all I had was a backup of the current client login system from the old website. It was a bunch of php, jquery and mysql. If you were like me you had no clue about that!
I spent all last night opening up the files and line by line examining the code. Could you believe that I understood it! Yep. I was able to figure it all out and even edit the code to add some things I needed.
So The client login system is installed and I will be looking into something a bit more fancy in the future.The trophy of accomplishment!