No phots I'm afraid, however... I do have some interesting family background from the site.
My Grandfather, Percy Hurst, was posted there during WW2, where he met my Gran (a resident of Lanark). They married in '44, before he went off to Normandy, then later the Netherlands and accross the Rhine into Germany. He demobbed in Italy.
His unit, when he de-mobbed, was the 4th Royal Tank Regiment, but I'm not sure if thats who was stationed at the Barracks in '44. The 4th RTR was, I believe, the 114th Lancs regiment, but my info on this is sketchy. Wonder if theres anyone out there would know where to get better info?
I also think Lanark has a memorial Hall/museam, which may or may not have pictures of the Barracks in use. You could try contacting the local newspaper as well, the Carluke and Lanark Gazette.
On a side note, Lanark has had a barracks since way back as early as the 18th Centruary, but I'm not sure if it's always been on the same site.
Hope some of this helps/is of interest.