How can I get the passport forms online?

I hope you are not filling this out for someone else. A LOT of scams are originating out of Ghana.

No you can not, it is easy for someone in Ghana to get a passport and very cheap.

Check out the following sites:

http://www.ghanaconsulatenewyork.org/

http://ghana.visahq.com/

http://www.ghanaembassy.org/index.php?page=frequently-asked-questions

How much those it cost

About 100 dollars, Visa ( gotten from the US) and a passport is not over 300 dollars total.

No there is not a requirement to have 1000's of dollars in the bank to leave the country.

And no it is not really a wonderful girl ( or guy) who is in love with only you, most likely it is their grandma, at a computer making 1.00 a hour to scam money from people in other nations