Not too bad considering the amount of vandalism and fire-setting that had gone on over the years. The church was made more secure in 1998 and extensive work was carried out between 2000-2002 to get it ready to open again.
However, the next available photograph, from 2000 shows this:
I can't find any reference to it being stolen or taken away for safekeeping so it's a bit of a mystery. I'm hoping to find out. The ogee arch in the middle was broken and later reattached so it's likely at least some of the decoration was lost to vandalism but it seems more likely to me that the large side-panels were removed and stored.
I'll update you when I know more!