Crystalline forms of 1-benzoyl-4-2-4-methoxy-7–1-methyl-1H-pyrrolo2,3-cpyridin-3-yl-1,2-dioxoethyl-piperazineits salts and solvates thereof are herein set forth, as are pharmaceutical compositions comprising the crystalline form, as well of methods of using the crystalline form in the treatment of HIV andor AIDS, and methods for obtaining such crystalline form. The method and system includes maintaining, by each of a plurality of access routers within the mobile IP environment, a cache of neighboring access routers as candidates and their associated access points. A mounting base is connected to the tooth attachment, and serves to mount a bumper unit, which extends from the lower posterior tooth to the upper posterior tooth. The user defined priority is stored on a computer readable medium.