Calling A Nested Procedure

Everytime I execute this script - I am not getting the result I want.  I was hoping to take the some parameters call one stored procedufre with in the main procedure.  I was hoping to assign a variable to the nested  procedure and use that variable in the main procedure, but I am getting a '0' as result - however when I call the a inner procedure by itself if get the correct result.  Can someone look at this and tell me where I am wrong?  It seems to be a scope problem.
 Thanks
 
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:       
-- Create date: September 8,2006
-- Description:    Inserts a new project
-- =============================================
ALTER PROCEDURE [echo88].[insertProject]
    -- Add the parameters for the stored procedure here
    @name varchar(50),
    @desc varchar(MAX),
    @start datetime,
    @finish datetime,
    @memid int,
    @addr1 varchar(32),
    @addr2 varchar(16),
    @city varchar(32),
    @stateid int,
    @zipcode char(5)
AS
BEGIN
   
    -- SET NOCOUNT ON added to prevent extra result sets from
    -- interfering with SELECT statements.
    SET NOCOUNT ON;
    DECLARE @siteid int;
    EXEC @siteid = insertSite @addr1, @addr2, @city, @stateid, @zipcode;
    -- Insert statements for procedure here
    INSERT INTO Project(Title, Description, Start, Finish, SiteID, MemberID ) VALUES ( @name, @desc, @start, @finish, @siteid, @memid );
END