Interest rates affect all curriences and help determine the rise and fall of all major dollar levels. Where can the earliest daily results be found? The euro, yen , dollar, and many other curriences are major factors in global economic trading decisions. How can I learn how this information is conveyed, displayed, expedited, and understood throughout the markets?

Answer
There are no "daily results" per se - The are non-stop from Sunday afternoon (EST) until Friday afternoon.
Here are some real time 5-minute charts for various currencies against the dollar:
EUR/USD - http://forex.tradingcharts.com/charts/index.php?sym=EURUSD
USD/JPY - http://forex.tradingcharts.com/charts/index.php?sym=USDJPY
AUD/USD - http://forex.tradingcharts.com/charts/index.php?sym=AUDUSD
NZD/USD - http://forex.tradingcharts.com/charts/index.php?sym=nzdusd

And you are right, interest rates have an effect, often a big effect.
Here is a 1 hour chart for the New Zealand Dollar vs the US Dollar: http://forex.tradingcharts.com/charts/index.php?sym=NZDUSD&data=b&tz=GMT&type=b&cs=1&period=1h&defdates=1&bmonth=Jan&bday=1&byear=2007&bhour=&bmin=&emonth=Jan&eday=1&eyear=2007&ehour=&emin=&Img+Type=png&drsi=0&ma1=0&dmacd=0&ma2=0&bol=0&dstoch=0&Submit=Submit
Near the end of the day on 03/07/07 (20:00 hours to be exact) you will see a large drop in the "Kiwi" vs the dollar. What happened is that New Zealand announced they were raising the cash rate (interest rate) to 7.50% from 7.25%. Normally when a country increases their interest rates, their currency appreciates but in this case there is a worry that the NZ Reserve Bank may strangle growth with such a high interest rate thus the currency is less attractive.

That's all probably more than you asked for, but I was on a roll :)

Question about Forex market?

$1.45 for 1 GBP. It used to be $2.00. If it went back to $2.00, it would be an increase of 38%. Does my investment really just increase in value to 38%? What sort of hidden fees are there, etc. And how likely is it that GBP would even return to that value.

Answer
The leverage for Forex is 100:1. This means that you only need a $1000 to control an amount $100000.
1 pip is 0.0001 and is worth USD $10 for GBP/USD currency pair. If GBP/USD goes up from 1.45 to 2, it will be a profit of 5500 pips * 10 = USD $55000. This makes the return to be 5500% for the initial margin of USD $1000.
There is no commission for Forex but you need to take care of the bid/ask spread in the trade. When you roll over to the next day, you will either receive interest or pay interest depending on which currency have the higher interest rate. If you buy the currency with the higher interest, you will receive interest when you roll over.
IMHO, it is unlikely will GBP/USD return to $2 level in the short term as the economy outlook is uncertain.