Silver Service is real time up to 300 stocks/indices.
For specific indices you must enable the relevant Market: Eurex for Dax, LIFFE for UK FTSE, CME for US etc.. and the relevant costs (the UK is of course exorbitant).
I bought Mytrack on the web and IRT as well.. just go to their home pages and follow from there.
You can email Mytrack and they will reply so detailed questions to them do get answered.. and IRT as well...