Windows 7: locked with bitlocker read only

I made one of my thumb drive locked with BitLocker and when I use it on an XP machine it can only be used in read only files. Do any of you guys know how to make it read and write. On the 7 machine it can do both.

Thanks and Happy Holidays!

I dont think XP is "aware" of bitlocker and so cant read it.

Well when you plug it in it prompts you for the password and lets you access it but can't write files to it. You can copy the files to desktop tho or any other locations.

Well this is what I found, it's to bad it's not write with XP or Vista read only. I going to have to format the drive again because I need it for XP too.

"
Overview

BitLocker protection on removable drives is known as BitLocker To Go. When a BitLocker-protected removable drive is unlocked on a computer running Windows 7, the drive is automatically recognized and the user is either prompted for credentials to unlock the drive or the drive is unlocked automatically if configured to do so. Computers running Windows XP or Windows Vista do not automatically recognize that the removable drive is BitLocker-protected. With the BitLocker To Go Reader users can unlock the BitLocker-protected drives by using a password or a recovery password (also known as a recovery key) and gain read-only access to their data."


Thanks again