Hi Simon
Glad to have you on the Forum
There are lots of paces you can look for help but unfortunately there is probably not a single reference source that will give you all you need!
My suggestions are as folows (in chronological order)
Look at some formalised trainingDirect from Open GI - They do a lot of courses and cover all the basic information you will need as well as further "Advanced" options once you are OK with the day to day proceses and tasks
Training material is pretty good IMHO and will cover process, choices and reasons for doing certain things in a particular way
[*]On-Line reference manuals
Open GI publish their manual on-line. It is more of a Reference guide rather than a What or Why guide but is a good start for the basic information. You can register with the Open GI support site here and get access to the On-Line Guides as well as lots of other useful information such as Product Versions, release dates and system notices etc[*]Peer Group
Clearly in Towergate you will have access to lots of other Open GI application developers and their experiences will be invaluable and probably more tuned to your business needs.[*]Suuport Desk
The Open GI support centre offer some help and advice to all new users. Their contact details can be found on the support site link above[*]Open GI User Group
If you are a member of the Open GI User Group then you will have access to other User Group members. Someone somewhere may have had similar questions and hopefully now have the right answers
As a Full Member, you will also be able to access the whole of the Forum site and again, there will be lots of information available to help you understand how Open GI applications work and how best used
Well that should keep you busy for a while.
If you need any more information on where to go for more help, then please let us know. I'm sure our other Forum users will also have some good pointers and hopefully they will be posted here
Good luck and hope all goes well!