Coffey

So do I need to downgrade my client from 0.5.3 to 0.5.2 as well as the server?

So I tried to make a new 0.5.3 server. I downloaded MCV and got 1.2.3 server files. I copied the server files and eng lang from 0.5.3 to 1.2.3. I put the 0.5.3 server files into main 1.2.3 directory and the lang into the lang sub folder. Tried to run it and nothing happened. Made a run.bat and this came up http://imgur.com/5LDfs Any help will be cool.