If it currently works, my motto is leave it alone, no upgrade, just like anytime you update windows usually bugs come with it.
Tried 8.0 on laptop when it came out but they removed some studies and changed some formulas so didnt like it.
Esignal 7.9.1 works for me, so sticking with it, been using esignal for past 6 years and never any serious problems, looked at 10 also wasnt impressed at all.
They need to improve there % winners, and losers as it hasnt been updated in years, limits you to just 10 stocks, 20 would be
better. Nice find in there on CPSL at the open today, for some nice trading.
They should also have option were you can just purchase it and just pay for the data feed, most other software packages you can purchase.