my dad has done his diploma in astrology, vasthu , smaudrika shasthra and stuff and hez here in visit now ... send me ur details and we shall tell u the matches ... place of birth, date of birth and time of birth of both the partners are required.
donno whether any site provides free matching but there are lot of paid match making sites ..
there are many s/w which could give u minimum details ... but detailed explanation requires an expert.