Foreign Keys and OIDs

Is the foreign key mechanism supposed to work with OIDs?
Is it known to be broken in 7.0.3?

I declare two tables:

CREATE TABLE address (
street text,
city text,
state char(2) check ( state ~'[A-Z]{2}')
);

CREATE TABLE personaddress (
person_id integer,
address_id oid references address(oid),
notes text,
primary key (person_id, address_id)
);

Then I insert data into both address and person.
When I try to insert into personaddress I get the following reply:

=>INSERT INTO personaddress VALUES ('1', '29321', 'My home');
ERROR: constraint <unnamed>: table address does not have an attribute oid

Should I create a new primary key column or is there some workaround or a
fix in the upcoming release or am I just plain doing something wrong?

Thanks,
Toshio Kuratomi
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b a d g e r @ p r t r - 1 3 . u c s c . e d u
GA->ME 1999