DuDu,
The easiest way I have found (I have done this 4 times) is to copy sections 1 through 8.5 of the standard, VERBATIM, then use the edit/replace function to replace all references to "the organization" with your company name. You will not be able to cut and paste from the electronic version of the standard, so someone will need to manually type the manual. After you are done this go through each section and wordsmith to fit your organization. Be careful when deleting anything. This makes it virtually impossible for a registrar to give a nonconformance for the manual not fitting the standard. Let's face it, the only reason you are writing the manual in the first place is to pass your audit and possibly send to a customer. It serves no real purpose, so make it easy on yourself. The last manual I wrote took a total of 4 hours for someone to type and about another 4 of my editing.
Good luck,
Carl-