[Koha] koha problem

I have installed koha 2.2.9 version on windows xp. but the problem is OPAC interface comes when i write down on internet address localhost but LIBRARIAN interfae is not coming. Would u kindly help me regarding this issue -- Md. Shahajada Masud Library Assistant Information and Communication Division CIRDAP, Chameli House, 17 Topkhana Road, GPO BOX 2883,Dhaka Phone # 880-2-9558751, 9559686, 7169824-5 ext.227 Mobile +88-01912704971 web address: http://www.cirdap.org.sg