summarize, remove duplicates

This question is related to:

http://www.experts-exchange.com/Microsoft/Development/MS-SQL-Server/Q_23243164.html

In the last post I got a good solution to my problem UNTIL I added more cols to the select, which forced me to add the same cols to group by, at which time I started getting "duplicate" records again. I'm defining duplicate as seeing the same CustID two or more times in a single resultset.

In the resultset below (extracted from a larger resultset), there are 4 records, but I only want 1 record. I want the record that has the latest datestamp in EITHER AddressCreate or PhoneCreate. That is the ideal. If that is really tough to do, then just the latest in either column (not compared across columns). But the most important thing is that (1) I only get a single record per custid and (2) I get the latest record per AddressCreate or PhoneCreate. And if I could get the latest comparing those 2 columns with each other, that would be the ultimate solution.

My latest query, based on previous solution, but with added SELECT items (giving me duplicates) is:

SELECT top 100 m.CustID, MAX(a.dtStamp) AS AddressCreate, MAX(p.dtStamp) AS PhoneCreate, m.FirstName, m.LastName, a.Address1, a.City, a.State, a.Zip, p.PhoneNumber AS Phone
FROM Member m (nolock)
JOIN Address a (nolock)
ON m.CustID = a.CustID
JOIN Phone p (nolock)
ON m.CustID = p.CustID
JOIN Customer c (nolock)
ON c.CustID = m.CustID
WHERE (c.CompanyID = 1 OR c.CompanyID IS NULL)
AND m.LastName = 'Foo'
AND m.Active = 1
AND m.[Primary] = 1
GROUP BY m.CustID, m.LastName, m.FirstName, a.Address1, a.City, a.State, a.Zip, p.PhoneNumber
ORDER BY m.CustID

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CustID	AddressCreate     PhoneCreate	FN       LN      ADDR	         City	ST	Zip	Phone
==========================================================================================================
00041646	2005-05-01 00:23	2005-04-30 22:34	Jill   	Foo     47 Foobar AVE.	Ina	AK	45590	5872853239
00041646	2005-05-01 00:23	2005-04-30 22:24	Jill  	Foo     47 Foobar AVE.	Ina	AK	45590	6054348877
00041646	2005-04-30 22:55	2005-04-30 22:34	Jill   	Foo     91 Zoobar LN.	DNP	HI	77742	5872853239
00041646	2005-04-30 22:55	2005-04-30 22:24	Jill   	Foo     91 Zoobar LN.	DNP	HI	77742	6054348877