[inno setup] How to Do this?

[lighten123]

To make my question fully understandable to you i attach an image demonstration.Please see this:

[img]http://i39.tinypic.com/ruzona.jpg[/img]

Well i developed my software,after finishing installing i want to show a window like in the image(from Bitcomet 1.19).
But that software is built on NSIS and mine on INNO.

So my requirement:

1.Show this window after installation but before finishing.
2.Writing custom message like: "Support Us".
3.Showing check box with two option:
  --[]Set Home page as:....
  --[]No,Thanks

so when [b]NO[/b] is selected a part of task will not execute.

4.Showing [my soft name] like [Bitcomet 1.19] at the lower left corner.

Wish you understand.And please, wish u be a help.