Hello, People!!!
Just to let you know, because of a deadline constraint I had to translate the functionality of the SSIS package to T-SQL, which was faster than trying to learn/understand/re-code using VS2005. Fortunately I met the deadline and the job is perfectly working with the new file format.
Thank you again for your help, I realized my knowledge of VS is not as broad as I had thought, so I will try to get some learning material in a near future.
Saludos,