[Zope] Newbie Question

[Matthew Russell]

Hi all,
Having been put off Zope by the uglyness of DTML before,  I am begining 
to get to grips with zope once again, and have played around with ZTP et 
al and it looks great.

We have one problem.

We have an existing system, where each of our customers (companys) gets 
a new subfolder of our site:

e.g
http://url:8080/customers/companyA
http://url:8080/customers/companyB

each company may have different users with various levels of access...
once again zope caters for this.

However, say i want each company to call a method :
    getFinancialRecords(company, username)

Prefrably this is an instance method of a class stored on the harddrive, 
but the main prerequist is that it is in ONE place.
I have also experimented with Product and got a couple working, and so 
understand i could use a product and include it in companyA's folder and 
companyB's folder, but this would be cumbersome if we have 2000+ 
company's for example.  Plus whenever we make a change to the product we 
need to update each product somehow.

So I am thinking, is it possible to include my Product 'X' (that has the 
getFinancialRecords method) in the "customers" folder and still 
preservce security and access levels?

Is there a better way that can i allow different levels of access to 
getFinancialRecords for different users of company 'A' for example?

any help would be very much appricated, been scratching my head for ages 
on this one.


Matt