is skelta workflow useful in vs.net

I am new to workflow engines.If we have to make our own windows application in .net and want to set the workflow of business inside business layer, will skelta workflow tool be useful.

The evaluation copy given by skelta is a workflow process setup by skelta itself thinking of the various business scnerios. However the scenario i am facing is different from the examples given.

is biztalk workflow different from skelta.

any other good tool which can simplify any business workflow in .net application

thanks in advance