Mate no offence but the way you type makes you look like an idiot :S
Why not try reading your reply to see how illegable it is before you post more txt talk gibberish lol
I'll tell you how to use noise reduction on tapes using Cooledit allthough you could have just read the help file you get with it as it tells you this so if your having trouble with a new program R.T.F.M.
Record your tape into Cooledit making sure you start recording before the music comes in so theres a part at the start that just has tape hiss or other background noise.
Select a short range (at least one half second) that contains only the noise that you'd like to reduce.
Choose the Effects > Noise Reduction > Noise Reduction option and click on Get Profile from Selection to sample the noise.
Click on Close.
Select the entire file (or the portion you want to noise-reduce).
Go to Effects > Noise Reduction >Noise Reduction again.
Click on OK to perform the noise reduction.
If the recording has no tape hiss/noise at the start then you will have to use hiss reduction (this doesnt do it as good as the noise reduction way above)
Again quoted from the help file.
To use, choose an FFT (Fast Fourier Transform) Size first.
Then either reset the noise floor graph to Hi (High), Med (Medium), or Low, depending on the estimated noise level of the recording. Or, find a section relatively free of audio that contains mostly hiss and click Get Noise Floor.
Finally, choose how much to reduce hiss by, and try a few times reducing hiss from a short sample with different noise floor modifier settings.
When you’re satisfied with the results, process the entire area you want to remove hiss from.