Buying property at courthouse

[Michael A Egenriether]

I just looked got information on a website at sherriffs office while i am at jury duty. I live in St Louis and went to website and saw properties listed with the name of owner , address , and taxes owed. Can i purchase or bid on a house on the date of auction if a house is listed at $ 1, 541.00, would that be all i pay if no one bidded on property? And could i get a list of buyers and wholesale these properties to them. The site said have money order by 2pm the day of auction. Just wanted to see if anyone on here did this before?