After mounting the Linx Library CD labeled 10191-1, entering the command 'rhlibrary' gives the error 'tixwish-tk4.1 not found'. tixwish-tk4.1 is a sym link in /usr/bin to tixwish4.1.7.6 which does not exist in /usr/bin. However, tixwish4.1.8.0 does exist. rm tixwish-tk4.1 ln -s tixwish4.1.8.0 tixwish-tk4.1 seems to fix the problem. There was no bugzilla entry for the Linux Library so I did the best I could.
Thanks for bring this to our attention and sorry for the delay. This should be fixed permanently now.