I need to export some data using SQL Server 2000\'s BCP utility. Sometimes my data contains characters, such as \\t and \\n, that I need to use as column and row terminator
You can't have data containing tabs and newlines with tabs and newline separators. It makes no sense. Escaping wouldn't help, because a tab is a tab. We're not talking c# string handling here.
What I'd do is use different terminators such as | and ||/n, or use a format file