[R] Package not on CRAN mirrow - what now?

[markwebb at afrihost.co.za]

Package arulesSequences isn't on CRAN for automatic package install.
I downloaded a *.tar.qz version because no *.zip for Windows offered.
Why is this?
I expanded *.tar.qz in ~R/R-2.11.0/library/arulesSequences
I then assumed that R would list it in the packages list but it doesn't.
What am I doing wrong ?
Regards