Mango does not currently use bar graphs, but other types of trend information are available in multiple ways. As Keith mentioned, there are graphs available on the point rollovers in both the watch list and in graphic views, as well as in reports. There is also a mutiple-point graph at the bottom of the watchlist. Larger, individual point graphs are also available on the point details page.
I'm not sure that this answers your question. If not, feel free to inquire more.
Yes I have got the new 9061 cards and have cut some VB code to control the cards in a multipelx setup. There is an updated driver for the 8055 that works a lot better. I am now using the 8055 as the control port driver and the 8061 to do the read write. seems to work fine. This gives me a set of cards for each location. With a total of 128 i/o ports more that I need. I worked out if I connect everything I will get the about 100.
The next step is to link the cards to the current house system to get an end to end test of a simple function, turn on and off a light.
As to Mango, I downloaded the files and did everything they said to set it up, but it gust will not run so I gave up. I will give it another go when I get the hardware sorted. Maybe by then they will have made it simpler to install.