Proper punjabi learning

dear sir, i have seen that on your site punjabi learning section , many letters are pronounced wrongly , its not in proper punjabi so plz if u have no punjabi teacher ( you can take help from punjabi dictionaries too ) then arrange one and correct the letters, you must not teach in wrong way, ... it shows only , that it is not a suitable and proper site to learn punjbai , what about other languages , i cant say anything, others who knows those languages can better say...