Can someone please tell me how to get this game and how to install it? Will i need to buy grand theft auto 4 in order to play this game? Or what will i need to do?

You need to buy GTA 4.

Also, I wouldn't PM users without consent on matters such as this as it's against the community guidelines and you may get yourself into trouble.

Thanks sorry didnt know the guidelines im new, so once i buy gta 4. What do i do next?

Install it, then download and install these:

.NET Framework 4

Visual C++ 2010

And then finally install this:

plus also get any mods your interested in, and follow the instructions that come with those mods, you require OpenIV or SparkIV in order to change cars.

plus also get any mods your interested in, and follow the instructions that come with those mods, you require OpenIV or SparkIV in order to change cars.

It's best to ensure that you have GTA and LCPDFR installed and working correctly before you go installing mods willy nilly.