When you next take some photo's try these ideas.
1. Use a bounce flash gun and have flashgun head pointing straight up to the ceilling.
2. If you don't have a bounce flashgun, try this use either a white tissue or a white kitchen paper towel, use either to cover your flash or pop up flash.
3. If that doesn't work then try some of that opaque sticky tape on your flash, pop up flash gun.
4. Use a copule of hallegon desk lamps and set your camera for apeture priority, set your apeture between f5.6 - f8 (you'll need to do a few test shots first) as this should give you some DOF and let in enough light but you will need a tripod and a cable release for this one.
5. If you can push the cameras ISO setting to between 100 - 400 (you'll need to do a few test shots first)
6. If you don't have a tripod try using a bag of unopened rice to sit your camera on, focus the camera and then use the built in timer for a camera shake free photo.
Hope the above will be of some help...
Regards
David