swf preparation

Hi,
I have a large project that I have already done once as a MMF2 app. It runs OK except that as I neared completion, some of the global strings began picking up text that wasnt theirs. I finally got it to run reliably,(x20) but when I converted it to a swf, not only did that problem happen again, but the <jump to next frame> buttons refused to work.
Its a questionnaire, with 150 checkboxes, I used 35 global strings, and those strings call up various paras from ordinary strings and edit boxes, later in the app.
Since it froze, I have been advised to construct this using an array, or arrays. My questions are:
1/what must I do to ensure that it doesnt freeze again, (and waste another few weeks work.) I havent used arrays before, and I want to know what issues I have to watch out for in building a swf with them.
2/Can I use five global arrays of about 15 items without crashing?
3/ Is it better that I load all the data into the arrays at startup, or as the checkboxes are being checked. I could do it either way.
4/ Any special properties of the arrays, or the swf build itself I need to be careful of?
OK. thanks.

I do not see why you should use arrays, if it works in MMF. It should work in Flash.
Can you send me your application? I will look at it, but only next week, as this wekk I am in England for the Bett show.

OK, will do. thanx