Judicial Foreclosure Auction at Courthouse Steps. What happens to the previous Tax Liens?

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I'm looking to purchase a judicial foreclosure on the courthouse steps in Georgia.  I just have a few questions I am uncertain about. Any help would be greatly appreciated. I've searched and cannot find any answers. 

1.  This is a judicial foreclosure to satisfy a first priority lien.  There were tax liens that were purchased before the foreclosure by an investor. Do the previous liens  get wiped out? 

2.  Are they paid off from the balance of the winning bid at auction?

3.  Will they follow the new owner if are the highest bidder at the judicial foreclosure auction?

I have included some links regarding the auction and judicial foreclosure for review. 

http://qpublic9.qpublic.net/ga_display_dw.php?coun...

http://georgiapublicnotice.com/view/full_story/257...

http://justice.fultoncountyga.gov/PASupCrtCM/CaseD...

Signed, 

Confused