New version of SWAT4 SBA was released (v1.76) .
Adding of new servers was fixed, it was damaged by my web provider 4 months ago when they upgraded the system and told no-one…
However the issue is now resolved and you can add your servers anytime.
Also ability to user proxy servers was added because of several requests.
Enjoy.
You can update using automatic update or by clicking here : 
DOWNLOAD