Nuclear weapons or nuclear power stations?

Article- Australia may sell uranium to Indian nuclear plant (THE STRAITS TIMES, 27/7/07)

Recently, there are many nuclear issues occurring around the world, with the North Korea's nuclear threat being the most significant one. With North Korea using its nuclear weapon technology as a bargaining chip to get more benefits for itself, there are now more reports of other countries that might be possible threats of nuclear weapon technology.

As stated from the article, "since Australia's decision to supply uranium to China last year, India has been pressuring Australia to sell the nuclear fuel to India as well."
Although both countries claimed to use the uranium to fuel nuclear power stations to meet the soaring demand from thier booming economies, the presence of nuclear weapons in these countries made the statement doubtful. Why is it that these countries cannot use other forms of fuel to provide energy?

However, the trade will most probably continue as this will benefit all the parties, with the uranium used in nuclear power stations to support their booming ecnomy as well as Australia gaining monetary benefit from the trade.