SQL 2005 SSIS Anomaly

I've sure I have a problem that hasn't been addressed on the forum exactly. I have a SQL 2000 database that the SSIS designer sees, meaning it is a member of the 'Server Explorer' group. I am trying to update my SQL 2005 database based on values from a SQL 2000 database table using an OLE DB Command data flow transformation. I use a SELECT query in the OLE DB Source control to get the required columns. I use an UPDATE statement to identify where to place the columns retrieved from the source. I get an error that tells me that the update statement fails because it can't identify the SQL 2000 database I am trying to use. The highlighted part of the error is something I haven't seen in the similar posts I've read. And, it's ironic because the server is actually 'linked'.

Error 1
Validation error. Import Moving Averages and Open Interest Data: OLE DB Command [3411]: An OLE DB error has occurred. Error code: 0x80040E14. An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80040E14 Description: "Statement(s) could not be prepared.". An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80040E14 Description: "Could not find server 'SIR-Research' in sysservers. Execute sp_addlinkedserver to add the server to sysservers.". Prices_MA_OI.dtsx 0 0

Here is the SELECT statement:
SELECT
Equity_Moving_Averages.m_d_y,
Equity_Moving_Averages.Ticker_symbol,
Equity_Moving_Averages.MA_10, Equity_Moving_Averages.MA_20, Equity_Moving_Averages.MA_30, Equity_Moving_Averages.MA_40,
Equity_Moving_Averages.MA_50, Equity_Moving_Averages.MA_80, Equity_Moving_Averages.MA_100, Equity_Moving_Averages.MA_160,
Equity_Moving_Averages.MA_200, OI_Data.OI_Call, OI_Data.OI_Call_Pricewgt, OI_Data.OI_Put, OI_Data.OI_Put_Pricewgt, OI_Data.PCRatio,
OI_Data.pcratio_pricewgt, OI_Data.PctRank365, OI_Data.PC_Diff
FROM Equity_Moving_Averages INNER JOIN
OI_Data ON Equity_Moving_Averages.m_d_y = OI_Data.m_d_y AND Equity_Moving_Averages.Ticker_symbol = OI_Data.Ticker_Symbol
--

Here is the UPDATE statement:
UPDATE [dbo].[Equity_Price_DIM]
SET [10day_moving_average] = [SIR-Research].internet.dbo.Equity_Moving_Averages.MA_10
, [100day_moving_average] = [SIR-Research].internet.dbo.Equity_Moving_Averages.MA_100
, [160day_moving_average] = [SIR-Research].internet.dbo.Equity_Moving_Averages.MA_160
, [20day_moving_average] = [SIR-Research].internet.dbo.Equity_Moving_Averages.MA_20
, [200day_moving_average] = [SIR-Research].internet.dbo.Equity_Moving_Averages.MA_200
, [30day_moving_average] = [SIR-Research].internet.dbo.Equity_Moving_Averages.MA_30
, [40day_moving_average] = [SIR-Research].internet.dbo.Equity_Moving_Averages.MA_40
, [50day_moving_average] = [SIR-Research].internet.dbo.Equity_Moving_Averages.MA_50
, [80day_moving_average] = [SIR-Research].internet.dbo.Equity_Moving_Averages.MA_80
, open_interest_call = [SIR-Research].internet.dbo.OI_Data.OI_Call
, oi_call_priceweight = [SIR-Research].internet.dbo.OI_Data.OI_Call_Pricewgt
, open_interest_put = [SIR-Research].internet.dbo.OI_Data.OI_Put
, oi_put_priceweight = [SIR-Research].internet.dbo.OI_Data.OI_Put_Pricewgt
, oi_put_call_difference = [SIR-Research].internet.dbo.OI_Data.PC_Diff
, oi_put_call_ratio = [SIR-Research].internet.dbo.OI_Data.PCRatio
, oi_pcratio_priceweight = [SIR-Research].internet.dbo.OI_Data.pcratio_pricewgt
, oi_percent_rank365 = [SIR-Research].internet.dbo.OI_Data.PctRank365
FROM [dbo].[Equity_Price_DIM] INNER JOIN [SIR-Research].internet.dbo.Equity_Moving_Averages
ON [dbo].[Equity_Price_DIM].prices_market_date = [SIR-Research].internet.dbo.Equity_Moving_Averages.m_d_y
AND [dbo].[Equity_Price_DIM].prices_ticker_symbol = [SIR-Research].internet.dbo.Equity_Moving_Averages.Ticker_symbol
LEFT OUTER JOIN [SIR-Research].internet.dbo.OI_Data
ON [dbo].[Equity_Price_DIM].prices_market_date = [SIR-Research].internet.dbo.OI_Data.m_d_y
AND [dbo].[Equity_Price_DIM].prices_ticker_symbol = [SIR-Research].internet.dbo.OI_Data.Ticker_Symbol
--

Any help will be greatly appreciated.

Dave W.