You need to move APPS from your Internal memory to your SD Card. There are several free APPS to assist you in doing this. One I've seen is called "App 2 SD", free in market ... but there are many to choose from.
You don't need an apps to move items to the SD card. Open System>Applications>Manage applications. When this is opened go thru each apps and under Storage, tap on Move to SD card. Long process, yes, but it will free up memory and worth it.
I know, as I say in disgust. I forgot my password (or log in name, or both). I Emailed for that info, but never received it, so I have to start from the beginning. Oh well! The name of the game is helping others and not personal glory.