Hi gtcurly,
Before deciding on stretches to ease the pain, it is important to have an accurate diagnosis - a consultation with a physiotherapist would be ideal.
Some of the more common sources of inner / front knee pain include:
Patellofemoral Pain Syndrome
Medial Meniscal Tear
Click on the above link for detailed information about these conditions including appropriate treatment.
You might also be interested in checking out the following knee flexibility exercises:
Knee flexibility exercises
Hope that helps and good luck,
PhysioAdvisor
www.PhysioAdvisor.com.au