there will be a download tab along with the support, members, scripting.
To inject you click
download and you will get a loader and from then it is simple.
close steam and csgo. enter your
FORUM NAME and
PASSWORD (don't tell anyone them) then click load, then you will be brought up a page called inject and ofc you click inject. Wait 10 seconds or so and csgo will load up. Another 10 seconds after csgo is fully opened the menu will open. To close and open up the menu click the insert key on your keyboard. ++ There are also many many other forums that you get access to after you purchase.
If you have any issues once bought the cheat open a support ticket in the support tab, and admins/moderators will get back to you sooner than later
Hope this helps