Hm... sorry cant help you there... that is a quite old A:M-version and I doubt that any can help you with this.
I will try anyway: Did you add anything to the project? Are your harddrives running normal? Do you save on a USB-Harddisc/external harddisc? Is it in USB 2.0-Mode or USB 1.0-mode? (for example if you changed the USB-port and got not the newest PC with some inactive USB-connectors / old USB-Connectors, this can happen).
If that isnt the case, open the project-file and have a look if there are any "empty-driver"-entries... I dont know which version had that problems, but it could be that 2002 was it. "<Empty driver>"-entries may increase the project-size. You wont find many informations about that, because this problem is LONG gone.
*Fuchur*
PS: I highly recommend you to buy a websubscription of A:M v15... it happend so much and so many good features came in and many patches for bugs are gone it just is a much better software today thana in 2002.
i the web subscription an update to the latest version of A:M?