tfl - Google Maps
The above should help you find your way across Birmingham. Its approx 15 mins walk from New st to Broad st.
Heres a link for psychometric tests which I've posted previously, but this will save you from searching the forum:
http://www.psychometric-success.com/...20Test%201.pdf
I'm also attending a Stage 1 assessment booked for 1500hrs at Novotel on the 22nd. Good Luck!