My first and most important piece of advice to you:
DO. NOT. SPAM. Don't make a load of crappy, low quality posts either. This
WILL get you banned and/or bluescreened, even formatted; and you
WILL NOT get to use the hack.
Watch the video and read the giant yellow/red text on this page.https://bigpackets.com/forum/members-discussion/gmod-bigpackets-download/Second; Your posts don't count if they're too short. Put some effort into your writing.
Third; Read the giant yellow/red text on the previously linked page.
Fourth; Be respectful to the one providing you with the best hack available for GMod, and plenty of other games.
My final piece of advice:
D O. N O T. S P A M. Learn to read if you're still missing this point.