[entwisi]

I'll try and expand.

You are downloading a file which is a compressed archive (download it under windows as you can see your windows drives from within Linux)

Opening a terminal gives you a command line to type instructions into.

sudo su - This switches you to the root user for the rest of this session (saves you using sudo all thetime)

cd This moves you to where you have saved the file. Depending on your install the windows drives may be under /media or /mnt. They may be listed as hdaX or sdaX where X is a number. If you have more than one partition there will be that many folders yo need to just have a look in them to work out which is "C" "D" or where ever you saved the download.

tar -xvf This unpacks the archive creating all directories as required
cd this moves into the folder created in the last step containing all the files for this fix

chmod +x This makes the script execuatble (one of the safety features of Linux is that files are never executable when downloaded)

./speed330.sh this 'runs' the script.

The last line was just a quick way of saying what all the commands did.

If you really struggle if your local I could pop round one day/night or just talk you through it over teh phone.