Hi thanks for the reply, I had already downloaded and uploaded that same driver to mdt and it didn't work, got the same error every time.
Although it failed it was the correct driver, I deleted and installed it directly on the pc and it worked, which got me thinking the driver is definitely the right one so I deleted all the other realtek drivers I had previously uploaded to mdt while I was testing to find the right one, updated the deployment share, then added just the one above, updated deployment share again, added new boot images ---- worked a treat!
was reading up on it and found something about too many similar drivers complicating things, may or may not have been the case, who knows!
Again thanks for the help.