Translating an XML with the DOM ParserAPI

[gangsterooseven]

Hello experts,
Here is what i am trying to achieve, I have a source XML which i need to translate it to a target xml with a different format/ structure as shown below:
Now the plan is to do this using Java, I do know of 2 APIs SAX and DOM,

I'd like to implement this using a DOM parser(eazier)
I would appreciate any guidance from anyone who's got some expertise on this:

Requirement:
Source XML Structure:
-The "summary" has details about a manager.
-A manager may either have a Distributor directory under him - If he has a distributor under him , that distributor will always have a seller assigned to him.
- A manager can have a Seller directly assigned under him.

<RequestBody>
	<Summary>
		<ManagerName>Keith</ManagerName>
		<ManagerID>K09090</ManagerID>
		<Distributer>Raymond</Distributer>
		<DistributerID>R87877</DistributerID>
		<Seller>Alex</Seller>
		<SellerID>A9876</SellerID>
	</Summary>
	<Summary>
		<ManagerName>Keith</ManagerName>
		<ManagerID>K09090</ManagerID>
		<Distributer>Robert</Distributer>
		<DistributerID>R11111</DistributerID>
		<Seller>Blake</Seller>
		<SellerID>B09976</SellerID>
	</Summary>
	<Summary>
		<ManagerName>Keith</ManagerName>
		<ManagerID>K09090</ManagerID>
		<Seller>Marie</Seller>
		<SellerID>M87656</SellerID>
	</Summary>
	<Summary>
		<ManagerName>John</ManagerName>
		<ManagerID>J97654</ManagerID>
		<Seller>Charlie</Seller>
		<SellerID>C98765</SellerID>
	</Summary>
	<Summary>
		<ManagerName>John</ManagerName>
		<ManagerID>J97654</ManagerID>
		<Seller>Drew</Seller>
		<SellerID>D98455</SellerID>
	</Summary>
</RequestBody>

And here is the target XML structure I need to Map to:

<ResponseBody>
	<ManagerEntity>
		<ManagerName>Keith</ManagerName>
		<ManagerID>K09090</ManagerID>
		<Distributer>
			<DistributerName>Raymond</DistributerName>
			<DistributerID>R87877</DistributerID>
			<Seller>
				<SellerName>Alex</SellerName>
				<SellerID>A9876</SellerID>
			</Seller>
		</Distributer>
		<Distributer>
			<DistributerName>Robert</DistributerName>
			<DistributerID>R11111</DistributerID>
			<Seller>
				<SellerName>Blake</SellerName>
				<SellerID>B09976</SellerID>
			</Seller>
		</Distributer>
		<Seller>
			<SellerName>Marie</SellerName>
			<SellerID>M87656</SellerID>
		</Seller>
	</ManagerEntity>
	<ManagerEntity>
		<ManagerName>John</ManagerName>
		<ManagerID>J97654</ManagerID>
		<Seller>
			<SellerName>Charlie</SellerName>
			<SellerID>C98765</SellerID>
		</Seller>
		<Seller>
			<SellerName>Drew</SellerName>
			<SellerID>D98455</SellerID>
		</Seller>
	</ManagerEntity>
</ResponseBody>

I would really appreciate any leads or any help on this as i haven't implemented this.

Thanks

[Tolls]

XSLT, as an immediate answer, for which there are scads of examples around on how to set up Java to transform one lot of XML into another using a stylesheet. Take a look at the Sun tutorials, since I would expect there to be one on there.