im trying to run network analyst from lines i created. im not sure how to set up the Network dataset to do so. when i set it up i can add stops and it will run, but when you clink the line for info it does not calculate the time it has taken to walk that line
Since you are quite new to the network analysis, I would recommend going through some tutorials first.
There is a very good tutorial with the sample data which you can go through to gain basic understanding of the network dataset concepts (in fact, you will build a new network dataset by creating features and defining their attributes first).
You can find the tutorial at: http://support.esri.com/en/knowledgebase/techarticles/detail/32890