Firstly, are you sure about the substitution template for 'logon path'? Perhaps, that should be an %h or %L or %N (not %n), and possibly even a %U (not %u). Nonetheless, I would try it without any substitutions first, to make sure the directory exists where you expect, and permissions are correct, etc.
Secondly, you haven't defined a [profile] share. Here's an example, from the samba book ...
http://oreilly.com/catalog/samba/chapter/book/ch06_06.html#ch06-71393