Hi,
back my days people was ashamed to ask stuff that is in the documentation / wiki.
Nowadays, about 80% of the questions are "solved" by pointing at the right page in the docs.
Don't get it as a personal thing, you're just one of the many.
Also, how to link ns.3 with other libraries have been discussed extensively in the group. Please search for the relevant thread.
If you have a specific problem, feel free to ask.
Hope this will point you in the right direction,
T.