I would recommend
http://homepage.ntlworld.com/g.mercer1/ for balls, boots etc. It has the largest selection I have come across.
As for ball modding, you will have to find the ball you like or create one but you will need a thing called an .mdl file that shows the same panel layout as your new ball or you will get polygon tears. I had this once when trying to import a new ball and it looks like a bit of two by four is attached to your new football.
I don't think you will have to bother adding a new England kit as I have already done it including the anti racism away one, unless there is a new one come out that I don't know about. I really wish I could take some decent screenshots of my files for you people; I am in the process of trying various screenshot modifications for Xbox.
I will be moving on tomorrow to modding Outlaw Golf 2! I have pretty much done everything I wanted to do with PES4 and am happy with what I have added or created. Its been an education but I tend to get bored very quickly and I have been changing bits in PES4 for a month now but still may come back to it later. I wake up with new kit ideas all the time now, how fucking sad is that!
As for being a hero, I am honored. I joined this forum over a month ago and had an accelerated learning curve since so many people were modding things long before me and the Xbox version has been a bit neglected. Not many people it seems are interested in Xbox updates to PES4, most of them want PC or PS2.
I can send you a picture of myself if you wish to build a shrine but you will have to buy your own candles as my business is a little slow and don’t have much in the way of money.
I am currently uploading my file collection at 30kbs so with any luck a few more people will have an update waiting for them in the morning.
See you tomorrow people!