XML to Prodataset - children without ID's

As a follow up to my post last week (Calling an URL) I've got a new question.

If I want to handle XML's and do it in a not so old-fashioned way ProDatasets has to be the answer. Given the xml below, how can I get relation between Transfer and Rates? How do I know which Rates entry thats related to a given Transfer entry (and which Inbound_Rate that belongs to a specific Rates etc)?

Also: do I really need a Rates table since that only is a tag containing other tags (no data in itself).

<transfer>
  <LocID>14483</LocID>
  <LocationFrom>Airport TLL (Tallinn)</LocationFrom>
  <LocationTo>Parnu</LocationTo>
  <Duration>0</Duration>
  <Distance>0</Distance>
  <Transfer_Type_ID>1</Transfer_Type_ID>
  <Transfer_Type>Taxi</Transfer_Type>
  <Num_Transfers>1</Num_Transfers>
<Rates>
<Inbound_Rate>
  <Rate_Id>1</Rate_Id>
  <Rate>171.6</Rate>
  </Inbound_Rate>
<OutBound_Rate>
  <Rate_Id>2</Rate_Id>
  <Rate>171.6</Rate>
  </OutBound_Rate>
<Both_Rate>
  <Rate_Id>3</Rate_Id>
  <Rate>343.2</Rate>
  </Both_Rate>
  </Rates>
  <Price_Policy>per unit</Price_Policy>
</transfer>
<transfer>
  <LocID>14484</LocID>
  <LocationFrom>Airport TLL (Tallinn)</LocationFrom>
  <LocationTo>Riga</LocationTo>
  <Duration>0</Duration>
  <Distance>0</Distance>
  <Transfer_Type_ID>1</Transfer_Type_ID>
  <Transfer_Type>Taxi</Transfer_Type>
  <Num_Transfers>1</Num_Transfers>
<Rates>
<Inbound_Rate>
  <Rate_Id>1</Rate_Id>
  <Rate>279.8</Rate>
  </Inbound_Rate>
<OutBound_Rate>
  <Rate_Id>2</Rate_Id>
  <Rate>279.8</Rate>
  </OutBound_Rate>
<Both_Rate>
  <Rate_Id>3</Rate_Id>
  <Rate>559.6</Rate>
  </Both_Rate>
  </Rates>
  <Price_Policy>per unit</Price_Policy>
</transfer>