This spreadsheet calculates 90%, 95%, and 99% confidence intervals for correlations.
Step 1: If the spreadsheet is not already activated, Click 'Click to Edit' to activate the sheet
Step 2: Once activated, enter the correlation and the sample size.
The Lower and Upper bound confidence intervals should display nearly instantly.
Check out the video for a demonstration:
http://www.youtube.com/watch?v=IQFPQJpeoL4