Hey rcorreia,
If you are looking for the .inf files and cab files for the install package, then these can be extracted from the .exe file one downloads. You could try downloading the drivers you mentioned and use a program such as 7-zip to open the archived file. Inside you will find a SETUP folder containing these .inf files and cab files you are describing. These may not work with your system, but this is how you can access the file types you are looking for.
Jason