APEX

Hello,

I'm an Oracle DBA thats slowly learning Apex. our company wants to use Apex for forms and various reports. I have absolutely no XML, Java, HTML or any such knowledge that would be usefule for webdesigners. i rely mostly on the settings Apex provides, but i'm learning a few tricks here and there.
my question is, how to customize/edit charts? here are open issues:
- i have a 3D stacked bar chart (flash chart). i want to be able to
- add a line to this chart for the same data. the line can be a "trendline" or some fixed value. i saw a website (AnyChart) that offers this soultion, but have no idea how to incorporate this. in any case, i did some tests, and it didn't work.
- changing the Legend: we want to be able to change the order of the legend, so that it fits the chart! seems like a simple thing, but Apex does not offer this. it shows the legend in reverse order to the chart.
Also, the Legend seems to fix a capital letter to the first character of a word, the rest is small.
ex: we want a legend definition "AA KCOO" and we get "Aa Kcoo". we define this in the SQL Query, but it doesn't accept this.

i suppose all this can be changed in XML coding, but how, and more important, why? shouldn't a tool like this have that option of changing these things? the GUI tool seems so limited here. its nice that you can customize in XML, but i think these are missing options..

can anyone help, or guide me to the right documentation?
thanks,
mike