Hi ToyaC! Over the summer, I posted about having issues disciplining my toddler, as well. You can read some of the great advice I got here.
Time outs were challenging for us as well, but I stuck with them and they work good for us now. Early on, it helped for me to actually take the time out with my son and use it as an opportunity to talk through what had happened, why he did what he did, and help him understand why it was wrong. Overall, time outs started more as time for us to sit down and talk...after he learned the meaning of time out and that it was a serious time for reflection, he started responding better and now sits alone for his given amount of time. Maybe it will work for you to approach it this way.