1.18 pointers

So I want to upgrade my code to BMX 1.18, but can't work around this:

Type ...
Field img:TImage[24], img2:TImage[24]

method loadImg(imgptr:TImage Ptr)
imgprt[0] = loadimage("...")
...

method blah()
loadImg(img)
loadImg(img2)
...

thanks for help
Roman