Here's a fun fact: ALL of the Trainz versions require serial numbers. I suggest that you purchase yourself a copy of Trainz before you begin to download content, because Auran takes their copyrighting policy strictly.
The A Line you're talking about on the Download Station from Broadway Junction to Beach 33rd was made by me(because if you read the content details, it says in bold "made by BStyles"), and I'd rather you not touch it, as I am going to finish it over the holidays with the new NYCTA super pack that's being worked on. But yeah, like everyone says, you need to learn how to wait patiently. Asking the developer 5,000 times in three days when his work is going to be released doesn't get it released any faster.
BStyles
PS: Do not PM me. What I said here is final.