How can I download updates on Mac OSX, Version 10.7 1?

I have Mac OS X Version 10.7 1. Every time I try to update my software, I get this message: Downloading 5 items; Downloading Mac OS X Update Combined; 21.6 MB of 1.99 GB about 11,000 hours. However, nothing seems to download. Everything stays at 1%, and I have the computer on all day. I changed the energy setting to ensure the laptop stays awake and never goes to sleep. This way the laptop could stay connected to the internet and continue downloading. However, it’s not working. Please help.