Unfortunately, because you've imported a LiveJournal style (which uses S2 core1), it doesn't have the backend necessary to support modules (which are built on S2 core2). So, you have two options:

* Find a DW-based layout you like and use it.
* Find a DW-based layout that has a similar structure to the layout you got from the_fulcrum, and translate the CSS to work with it. (A lot more work, but most likely doable if you know your way around CSS.)