Wow, that is very old and upgrading the laptop might not be the best solution since you will probably end up needing a new laptop soon anyway. Unfortunately, a web search, and a search at Dell's site yields no results. I assume it is due to the age of that old clunker. With laptops, you can usually replace the hard drive (Assuming you still have disc to reinstall Windows), the RAM, and battery. Most other repairs and upgrades should be done by a professional and not attempted by a home user. Updating the RAM might be doable, however, we need more information regarding your computer setup. You can get this information by downloading CPU-Z here
. Once it is up and running, go to the the memory and SPD tabs and tell us what is there. Most laptops have a door on the bottom of the PC to allow for easy access to the RAM.