connection help

hey im 2006 passed out.,im a trainee in asp platform.,

ive been provided windows authentication and i have a code showing error. could u please help me and i got this code from net only else u giv me a correct code to connect asp and sql2005

my code

<%

set con=server.CreateObject("ADODB.connection")

con.Open dsn="dsn_uma"

set rs=server.CreateObject("ADODB.recordset")

rs.Open "select * from xxtable",con,1,3

while(not rs.EOF)

for i=0 to rs.RecordCount

Response.Write rs(i) & ":"

next

Response.Write "<br>"

rs.MoveNext()

wend

%>

Please check this link http://www.frontpages-web-hosting.net/support/asp.access.database.connection.htm

Make sure your DSN is configured correctly and tell us the exact error msg if you still see errors.