[BioC] how build annotation package

[LIANHE SHAO]

hello everyone,
Just want to know if anybody has written a step by step instruction to build a affymetrix annotation package. We have some moe430_2 chips (as well as the library files) from affymetrix, but I can not find its annotation package from bioconductor meta data section. Seems the instruction of How to use Annbuilder only apply after you have data with specific format (such as two columns). But now I only have the chip library file.  

Regards,
William