This should likely be a separate post as it has nothing to do with spatial types.
But, what error messages are you getting??? Are you using bcp utility or bulklib API in your own program?
Check:
1) sp_dboption bulkcopy is enabled
2) datatypes of source/target are identical if using native datatypes
3) bulkcopy format specification (e.g. are all columns present, what is field/row terminator)?