Your free service - Thanks & query

Hello,

happy new year 1999.

Thanks for making this wonderful service available for free.
I was wondering what advantage it was to you to offer this service ? Is it some
sort of advertisement, or is it simply good will ?

I have used this service for a good few documents and I think I know how to use
it now, except for one of the options : GETPART. Either I did not understand the
documentation or it does not work as I expect.
I sent a query for a multipart reply from your service and unfortunately I am
missing one part. Now I do not want (and I do not have the quota for that
anyway) to retreive the whole document again, only one part of it is what I want
:

GETPART 4 13
http://graphics.stanford.edu/papers/veach_thesis/thesis.pdf

I sent this simple query (three times) but got no answer.
Thanks for advising me what I might do wrong or for considering correcting a
possible problem in your service.

Regards,
Alain.