I should house train my dog by following this guidelines strictly,
http://dogtime.com/housetraining-for-adults.html
A dog can stay without peeing for max of 4 and a half hours
to stop peeing on your floor?
If your dog is still peeing on the couch, then you have not trained him/her well enough yet.
Positive reinforcement or punishment... You can show it where to pee and give it a treat when it does. or If it pees on the other dog, look at the peeing dog and yell "no" it until it stops. Either should work but positive reinforcement way usually works best.
You can get the male dog neutered, this should stop him from urinating in the house as much as he did.
You need to take the dog to the vet ASAP.
Peeing.
get him used to peeing with the leash on, so he'll get used to it.
The dog is marking it's territory. It's normal for a dog to do that.
By peeing
urine trouble!
shoot it