Project Portfolio Server 2007 - Installation Error

[Wilt Thomas Rovira Britton]

Hi. I want to install Project Portfolio Server 2007 on a server Win 2003 R2
+ SP2, SQL Server 2005 Developer Edition + SP2, Sharepoint Server 2007 (All
in one box).
I got the following error... please help!!

Event Type: Error
Event Source: MsiInstaller
Event Category: None
Event ID: 10005
Date: 6/17/2007
Time: 4:00:13 AM
User: SERVER\Administrator
Computer: SERVER
Description:
Product: Microsoft Office Project Portfolio Server 2007 -- Error 26204.
Error -2147217913: failed to execute SQL string, error detail: Se terminó la
instrucción., SQL key: DB_PPSAccountData_Upgrade_12_Integrated SQL string:
begin transaction
set nocount on
declare @accountid int
declare @internalClassid int
declare @linkid1 int
declare @linkid2 int
;;;;;;;
declare AccountsCursor cursor for select distinct AccountID from
sfStructures
open AccountsCursor
fetch next from AccountsCursor into @AccountID
while @@fetch_status = 0
begin
--Add the new attribute only if missing
print 'AccountID ' + convert( char(20), @AccountID)
set @forecastStartID=NULL
select @forecastStartID=ID from sfATTRIBUTES where
InternalName='FORECAST_START_DATE' and AccountID=@AccountID and
EntityType='PROJECT'
.....
......
commit transaction

exec spUpdateVersion 1112004

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0010: 30 34 45 2d 38 39 39 32 04E-8992
0018: 2d 36 41 46 31 35 33 45 -6AF153E
0020: 44 31 37 31 39 7d D1719}