Please login to your account or register as a new user. This will enable the PayPal Buy Now button.
You may now pay with either credit card or PayPal.
PayPal lets you send payments quickly and securely online using a credit card or bank account.
If you have a license, for which you haven't paid (e.g. Free Trial), select it from the list. Otherwise, select New.
Click the Buy Now button. Then if you have a PayPal account - login to it and pay.
If you don't have a PayPal account - pay with your credit card.

After you finish successfully the payment process you will be redirected back to this page. You will find the Download button. Click it to download the software.

After downloading click the self-extracted EXE file. It will run and guide you through the setup process.

Activation
After setup is finished you should activate the program on its first run, as follows:
Click Yes in the Ask for Activation dialog:
The Program Activation dialog will appear, displaying your license number and computer hardware ID:

Fill in your Bux Panel login and password and click the Activate button. In case of successful activation the Activation Code will be displayed. Then click the Exit button. From now the Bux Panel is activated. Good Luck!
Important: Your computer must be connected to the Internet for the Activation!