Inventory with history function of devices

First of all, i imagine that i want to have a inventory...

I have now a topic with a little overview of the devices (for example printers). At this site (topic) is a little form (http://pastebin.com/m2e79b40e), where i can input some data like Inventary number, Name or Manufacturer as you can see. If i click "Save" now, the data were saved in a Form like this one -->

But i want, that the form (http://pastebin.com/m2e79b40e) can save the data in a normal %TABLE... %. I have to define, where the form (http://pastebin.com/m2e79b40e) will save the data (correct position in the table).

When the form saved the data and create a device-topic, there should be a link, where i can open a second form. In this form i want to change variable date (eg the status, location of the device...). And if i save this changes, in the device-topic should be create a little history table with informations what has changed. I want this, to see, where a device was before the currect location. That is my grossly vision/idea.

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Can't work out what your question is, sorry.

-- CrawfordCurrie - 15 Feb 2011