I just downloaded the 6.1 and 7.0 versions of tktds7xx.zip and found all of the VIs (at least all in TDTDS 7XX VI Tree). There are two llbs in the zip file. One in the tktds7xx folder and another in the _shared folder. If, when you try to open a VI and it asks for one, try pointing to the llb in the _shared folder.