Life In 19x19

Thank you very much for those links. I did have one of them. Do you happen to know of any freeware/donation go playing software so I can play against the computer? I knew one but I have forgotten the name and the author.

p.s. I did find the david fotland program trial version after I posted earlier ...

I am coming back to go after a very long time away. I need a free program that will let me play on my computer at home so I can practice the josekis and work out problems. What would you all recommend? I do have an sgf reader already.