Every vehicle that can be equipped with tether anchors has a specific spot where they belong. Some vehicle manufacturers use the floor, some use the back/bottom of the vehicle seat and others use the ceiling. For your van, it appears that your anchor points are in the floor (my tether manual makes specific mention of them being on the back of the seat on '01-'03 models). The manual specifies that in the 2nd row, the anchor is in the outboard positions and in all 3 seating positions in the 3rd row.
If you would like to double-check your dealer's installation, give Dodge a call at 800-992-1997.