Hi lastbutonlyone sathi

 
As you have said your opt expires on march, so you need to be in search of community college to maintain your status, that is the most important thing for time being. Regarding H1B, you can file at April 1,2009 but your opt expires before that period so you must, I repeat again sathi you must join community college.

 
Ani regarding H1B, If you get the job you can file it with great excitement else think once. In the current situation, lot of people who got H1B in last year, 2008 still are unemployed though they have H1B visa that makes the situation even worse. But my suggestion file it since next year it will be more tough if same situation exists.

So your way can be,

1. First get admitted to the community college
2. File H1B in April , pashupati Nath ko Asirbad lae you will get it in April sathi
   
   Tespachi aru way sochnu pardaina, so focus on your training and get the job. My best wishes are with u sathi.