those posting values are which ones ?
I have a similar situation, where i have 3 drop downs and after the values are collected ---
once i have that information, i envision the action=post with those values.
the results page will have to create another record set of values based on those parameters, after creating some sql to get the data from another table.
ie in my case i will have state,county,city on a master type of page.
the sql will get contractor data based on those values and put in place the results on the results page.