HOW COULD CHANGE MY PERMALINK FROM BLOG TO CUSTOM STUCTURE

PLEASE HELP ME

When I install multi wordpress site...

I have a problem with that.. my default site parmalink goes to Permalink: http://ift.tt/1Dr2RFg

custom permalink : http://ift.tt/1wpraUu

Please help me.. how could change my permalink

Please Help me about this case...

I want the permalink is : http:// http://ift.tt/1Dr2RFh

just mail me : krishanu.info@gmail.com skype : krishanu.in I need your attention and help on this problem.. please suggest me...