First set the global evaluation date to January 1, 2005.
Construct a coupon that pays the fixed rate of 5%. The accrual period starts on January 3, 2006 and ends on January 3, 2010.
Compute the value of this cash flow on January 3, 2005.
Here is another way to compute this. First, compute the accrued interest.
This is the value to be received on January 3, 2010. You must discount this value using the discount rate.
This is the value of the same cash flow on January 3, 2004.
Calculate the net present value of the set of two cash flows.