Right now, when picking dates for the categories on a chart, you are only presented calendar years/quarters. We are offset by a quarter so calendar Q1 is our Q4 - big difference in urgency! It would be great to be able to chart based on Calendar OR Fiscal years.
Joe, we'd reccomend that you build an aggregate model and use the date function "Fiscal Quarter" or "Fiscal Year" to group your records. You lose the date granularity options in your charts, but you improve your information display and you are able to show much more data.
Date groupings leverage base salesforce date functions. These functions work if you have a standard fiscal calendar (Which means it follows the gregorian calendar but can be offset to start on some other month date). I think this will work for you.