Creating A Single View From 2 Existing Views

I have 2 views which contain the following fields:
EVENT,
WEEK,
SUBSCRIPTION,
QTY,
GROSS_AMOUNT,
SEASON

The 2 views differ by SEASON. I'm attempting to combine the 2 views in to a single view or table grouping by EVENT, WEEK and SUBSCRIPTION:

EVENT,
WEEK,
SUBSCRIPTION,
Q6 (qty of season 1),
A6 (gross_amount of season 1),
Q7 (qty of season 2),
A7 (gross_amount of season 2)


Below is my select command:

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SELECT TOP 100 PERCENT
dbo.vw_SEASON06.EVENT,
SUM(dbo.vw_SEASON06.QTY) AS Q6, SUM(dbo.vw_SEASON06.GROSS_AMOUNT) AS A6,
SUM(dbo.vw_SEASON07.QTY) AS Q7, SUM(dbo.vw_SEASON07.GROSS_AMOUNT) AS A7,
dbo.vw_SEASON06.WEEK,
dbo.vw_SEASON06.SUBSCRIPTION

FROM dbo.vw_SEASON06 FULL OUTER JOIN
dbo.vw_SEASON07 ON dbo.vw_SEASON06.WEEK = dbo.vw_SEASON07.WEEK AND
dbo.vw_SEASON06.SUBSCRIPTION= dbo.vw_SEASON07.SUBSCRIPTION AND
dbo.vw_SEASON06.EVENT = dbo.vw_SEASON07.EVENT

GROUP BY
dbo.vw_SEASON06.EVENT,
dbo.vw_SEASON06.WEEK,
dbo.vw_SEASON06.SUBSCRIPTION

ORDER BY
dbo.vw_SEASON06.EVENT

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This creates the view but there are some issues. If an 'EVENT' exists in dbo.vw_SEASON07.EVENT and doesn't exist in dbo.vw_SEASON06.EVENT the value of the field 'EVENT' is set to NULL because the 'EVENT' name is returned from dbo.vw_SEASON06.EVENT. The same issue exists for 'SUBSCRIPTIONS' and 'WEEK'.

How can I create a single view/table that will include all the data from these 2 views without the NULL values in EVENT or SUBSCRIPTION?

Any help is appreciated!