Thanks guys. I was able to configure the bitcoin.conf to testnet and now the Bitcoin Core is running on testnet with the green logo. I did insert some rpc info like user/pw ports etc. I opened those ports. Does anyone have any info on how to set up a testnet pool to connect your miner to it? Thanks for your response. I also found another option to run a bitcoin full node via bitnodes. They have a one line command that you can run on your VPS or something. I just haven't figured out how to configure that one to testnet. I kept getting errors on it.