I Hate to say this but based on your last comments you have not properly implemented the UK template as an independent over-ride system.
The file at 'includes/languages/english.php' is one of the core files supplied by zen cart. If you were using the UK template as designed you would be using the UK template version of english.php but it would be stored at
'includes/languages/custom/english.php'
The reason your price shows up at 7.93 is because when you added the product your default currency was dollars.
Then you've changed it to GBP and ZC has converted the price. It's about half.
When you were experiencing difficulties initially, I offered you paid help and you decided not to take advantage of it then. Sometimes when you don't have the knowledge it is quicker to pay something to get yourself on a firm basis to start with.
With the best will in the world I can't support on something that hasn't been installed as it should be. I don't know what you've done, added etc and it's too time consuming to offer free support.
Please let me know if you'd like me to have a look to see what needs to be done to get it working how it should be.
Kev