Is there any chance someone would please be able to re-size an image for me so it fit's as a facebook cover properly i've been trying to get it to work but it just wont fit
Facebook cover has the dimensions of 851 x 315. If you want it to fit nicely, just use a simple programs such as photoshop or paint to resize it to 851 x 315.
However, facebook will also help you stretch it to those dimensions if you upload a smaller image which is at least 399 pixels wide.
Additional info - upload file has to be lesser than 100kb, and to get a higher quality cover, upload it in .png