I would like to refurbish it because the screen and the CD player are damaged.
I don’t know exactly what Portege you have but if the screen is damaged then you will need to spend a lot of money to get this fixed… not sure if it’s really worth to do that for old notebook.
However, if you want to fix this, you have to contact an Toshiba authorized service provider in your country. The guy should be able to do this for you.
Here you can find the page with all ASPs worldwide:
http://eu.computers.toshiba-europe.com -> Support & Download -> Locate a Authorised Service partner