1. Open and then close your wallet.

2. In windows, go to start -> run (or press windows key and 'r' key to bring up the run dialog)

3. Type (or copy and paste) the following:

notepad %appdata%\H2OCoin\H2OCoin.conf

(This will prompt to you create the file, click yes)

4. Paste the following from the OP:
addnode=54.236.122.39
addnode=178.222.185.90
addnode=198.20.124.178
addnode=54.236.122.39
addnode=2.124.177.159
addnode=198.20.124.178
addnode=194.22.193.77
addnode=46.226.187.152
addnode=151.74.247.2
addnode=184.8.221.229
addnode=121.226.83.171

5. Within Notepad, Click on File -> Save, then close notepad

6. Open your wallet and it should sync in a couple of minutes.

Just verified Grandma can handle this so I think you can too !