My dishwasher isnt rinsing the dishes, leaving soap on dishes. Also doesnt seen to be draining well, leaving scum on the filter on the bottom. Tried a dishwasher cleaning agent and have tried CLR. I didnt get a manual for it when i purchased the house. Are there internal filters? Is there a online manual I can look at to sevice it?

The problem is most likely that there is still water residue at the bottom of your machine. If the machine is not fully drained it picks up some of the residue and sprays that onto the dishes during the final rinse, leaving an unhealthy and unsightly film on everything.
Remove the bottom strainers plates and make sure that the outlet pipe is not kinked, that there is nothing obstructing the pipe or the pump or selector valve. If possible back flush through the outlet pipe and try draining the machine once more before using it again.