Display Dealers field

We have numerous clients uploading advertisments to our site. We need to capture their name & town from the appropriate field and display on the section home page and when clicked through will display all advertisments by that company. This field should also be added to the actual advertisment also "View All Ads by this Company" when clicked through it will list all Ads by this company. We have this working in another section as an example. The company names are to be displayed in 3 columns and space made ready to input a small company logo image which we will collect direct from the dealer and insert. Must be able to work in our timeframe and effective communications using on line and completed within 1 -2 days without delay.