If you have issues we offer free tech support on our site and via email, as well as paid phone support. If the server software is crashing you may want to check if it isn't getting along with another program, or possibly there is an issue with the server machine. You can use any machine that is regularly running as a server, so you may want to simply try changing servers. Please contact us via our support board or contact me personally via email at tom at oranged dot net.
Also the current price for 6 users is roughly $690, and if you purchased 6 months ago it would have been even cheaper. As an example of the pricing of one of our competitors, Daylite 3 is $650 for 5 users and the project management and invoicing features are purchased separately as their Billings program.
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