SQL Server Managed Code Error 'system.core.... was not found in the SQL catalog'

Hi Experts,
I wrote a SP in C# to deploy to SQL Server using VS2008.  The code works fine when I use it in windows app.  But when I push put into C# SP it generates the following error:
Error      1      Assembly 'system.core, version=3.5.0.0, culture=neutral, publickeytoken=b77a5c561934e089.' was not found in the SQL catalog.      

Error      2      'System.Array' does not contain a definition for 'Count' and no extension method 'Count' accepting a first argument of type 'System.Array' could be found (are you missing a using directive or an assembly reference?)      

I have found several links to adding registering System.Core, adding references, etc.  but so far I have been unable to resolve the issue.  I 'think' it has to do with only 13 or so assemblies installed in SQL Server 2005.  Is there a way to add more references?

http://social.technet.microsoft.com/Forums/en-US/sqlnetfx/thread/3dfee9d1-0cfd-48da-a90f-100a7d67ee1c/

http://luke.breuer.com/time/item/SQL2005_using_LINQ_in_SQLCLR/213.aspx

http://social.technet.microsoft.com/Search/en-US/?Query=system.core+was+not+found+in+the+sql+catalog%3b

http://www.google.com/search?hl=en&client=firefox-a&channel=s&rls=org.mozilla%3Aen-US%3Aofficial&hs=XEg&q=Assembly+%27system.core+not+found+in+the+SQL+catalog&btnG=Search

NOTE: When I comment out everything between the drConflicts.Count() == 0 and the end it still gives the errors, when I comment out the if/end then the error goes away.  I am assuming System.array which is not part of the assemblies in SQL Server is the problem?

Thanks in advance your help!

...  
            DataRow[] dRow = dtInRunning.Select("plCallPID = " + pidID);
            DataRow[] drConflicts = dtConflict.Select("pdID = " + pidID);
 
            if (drConflicts.Count() == 0)
            {
                if (dRow.Count() > 0)
                {
                    pidRunningThreadQty = (Int32)dRow[0]["pidCnt"];
                    pidRunningThreadAllowed = (Int32)dRow[0]["pdPIDThreads"];
                    pidRunningClassQty = (Int32)dRow[0]["classCnt"];
                    pidRunningClassAllowed = (Int32)dRow[0]["pdClassThreads"];
                    pidMaxCallsPerDayAllowed = (Int32)dRow[0]["pdMaxCalls"];
 
                    if (pidRunningThreadQty >= pidRunningThreadAllowed)
                    { runPID = false; }
                    if (pidRunningClassQty >= pidRunningClassAllowed)
                    { runPID = false; }
                    //if (pidMaxCallsPerDayQty >= pidMaxCallsPerDayAllowed)
                    //{ runPID = false; }
                }
            }
            else
            {
                runPID = false;
            }  // if (drConflicts.Count(....

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