Hi, the divide..

fleXcroll is a commercial script, but it is free only for non-commercial websites. Your site should do fine without the use of fleXcroll, you do not need it, but if you really need to use it, please be kind and buy a commercial license.

If you do not have the money:
a) you can ask for a temporary license that will be valid for e.g. 6 months and pay the 30 usd single website license fee when you can earn that kind of money.
b) remove fleXcroll from your site and try looking for free alternatives to the script.
c) Just stop playing with your scrollbars all together, your website is fine without them.

The license text in the script *explicitly* states that the license text should not be removed, but I am afraid you have done so.
This is the script on your site:
http://www.stereofarm.co.uk/style_sheet/flexcroll.js

And this is how it should look like:
http://www.hesido.com/web/flexcroll.js

You have a studio that tries to earn its finances using intellectual properties, I wish you paid a bit more attention to other people's intellectual properties.