OK, I went at it with the determination of a hamster on his wheel.
I figured out several things.
1. I had to be a lot more precise when it comes to my src definition (which makes sense)
2. If I have httpd running, obviously I cannot use port 80 because competition would ensue between the services
3. The location of the ntlm helper libraries are not the ones I, naively, pasted right away. I should have known better.
4. I should RTFM before I start tackling stuff like this and then asking n00b questions.
Thanks a lot mate, you were patient with me