You have to do all the stuff that is listed in various threads on this forum. Let me try to give you a short list to start.
Update to 2 gb RAM
Install a SDHC card ( I use an 8GB)
Use the installed MS Works, instead of installing Office, it's too big.
Use IE8 instead of Firefox, it's too big.
Get rid of Windows Live
Get rid of the DELL folder.
You can also store the i386 folder on the SDHC and delete it from the
SSD.
Ditto the drivers folder.
Get rid of the following programs if you don't need them:
Movie Maker
Power point viewer
MS office compatibility
Games
After you update the RAM, shut off paging, hibernation & restore.
This should give you about >3gb to work with.