Not sure how to load brushes to Photoshop, follow these steps and you can:
Step 1:: You going to want to download a 
.abr brush file.
Step 2:: Open your 
Photoshop.
Step 3:: Select the 
Brush tool from the toolbar.
 Step 4::
Step 4:: And now from the 
Options Bar, select the Brush Preset Picker 
dropdown menu, click the 
arrow off to the right, and then select 
Load Brushes.
 Step 5::
Step 5:: Browse to the folder where your installed brushes are stored, and load them from there. You're new brushes will be available in the Brush Preset Picker, as well as the Brushes window.
If this helped, a 
link back is required.