Hi Jeff and welcome to the forum
There is a lot to take in when just starting out, best advice I can give you is to not try and rush. Take your time and learn the basics and you'll be in a far better position. Of course we are always available for assistance on any topic you have questions or would like advice on as well.
In regards to contacting suppliers. Our directory is just that, it's just a directory that lists our approved suppliers. When you find one that you would either like more information about or want to open an account with to start trading, then you will have to use the contact information listed for them and contact them directly.