Developing Forms in Flex

Hi,
I have been developing forms in LiveCycle Designer and have started to look at doing some of these in Flex. The aim is to have some hosted on a web site or grouped in an AIR application.
I am working through online resources and tutorials (Tour de Flex, First steps in Flex, Adobe DevNet), which are helping a lot but we are still struggling.
I would be grateful if someone could point me in the direction of a good resource specifically for forms. I am trying to capture some best practice at the start rather than discovering it at the end.
Also I am having trouble printing and getting to grips with the differences from dealing with page sizes (LC Designer) to pixel dimensions (Flex). Again if anyone could point me in the direction of printing solutions for forms, it would be great.
Thanks,
Niall

Hi Dany,
Story so far...
It has taken quite a bit to get alivePDF up and running. I am coming from a low level of understanding of mxml and as.
I am still having difficulty getting images loaded into the PDF. Sample is here.
Generally alivePDF is good, once you get into the swing. But it is driven line by line:
myPDF.addText("Organisation: " + this.orgName.text, 20, 40);
It can be clunky, if you move something high up on the page, you have to amend the position of all of the objects below it. This leads to duplication of effort: (1) declaring objects in Flex for display; and (2) declaring objects for adding to PDF.
It can be trial and error. In Flex I had a multi-line object, which if I used addText it would look like "line1\rline2\rline3" in the PDF.
myPDF.addText("Trading address: " + this.tradeAddress.text, 20, 50);
Switching addText to addMultiCell needed three lines of as:
myPDF.addText("Trading address: ", 20, 50);
myPDF.setXY(55, 46.75);
myPDF.addMultiCell(120, 4, this.tradeAddress.text);
It resolved the multi-line input, but it involved trial and error in getting the x, y coordinates to work. I suspect that this is to be expected.
I have not had time to try out purePDF as yet, but I suspect that it is a similar process. One aspect is that (as far as I can tell) alivePDF will work with flash < 10, but purePDF needs flash 10. Could be wrong.
It is surprising that given Adobe's history in print and PDF, that there is this (apparent) gap between Flex/Flash and PDF.
Thanks,
Niall

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============= Config Information =======================
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Hi Buddies,
Can anybody help me out in this regard.
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In my developer Forms Screen i have one button named resume.
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Quick response will be appreciated.
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Boss,
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