hello, thanks for answer me back and i try your suggestion but it displays the next message error:

Microsoft OLE DB Provider for ODBC Drivers error '80040e09' 

[MySQL][ODBC 3.51 Driver][mysqld-3.23.49-max]You have an error in your SQL syntax near '(cod, unsigned), idusuario, password, nombre from administracion order by cod' at line 1 

/callc/con_modasg.asp, line 10 

my line 9 and 10 respectively are:

sql="select convert(cod, UNSIGNED), idusuario, password, nombre from administracion order by cod"
set rs=conn.execute(sql)

There's something wrong?
Thanks for your support.