form allow to control the time and writing ?

Hi
I planning to make my own subtitle program //C#// , like "Aegisub" or "Subtitle Workshop", but i faced 2 problems.
First: how to make a form like this one, that allow to me to control the time and writing ? i tried DataGrid andDataGridView but it's useless
http://im33.gulfup.com/GiGIw.png

Second, when i save my subtitle ((any type TXT or SRT)) it should appear like this in the note :
1
00:00:00,000 --> 00:00:01,000
Hi
Can i help you ?

2
00:00:01,001 --> 00:00:02,001
Yes

3
00:00:02,002 --> 00:00:03,002
Where can i find the axe ?

4
00:00:03,003 --> 00:00:04,003
On that side

Any advice or suggest will be very helpful for me