relocating /tmp to other media

[Dave]

Hello,
    I'm trying to run bitdefender on a 5.4 system. It works fine up until / 
fills up, i'm having it scan a 40 gb smb mounted windows share and when / 
fills specifically /tmp bitdefender cores out. My / filesystem on this box 
is i believe either 130mb or 256mb, and this issue does not occur when 
scanning a 20 gb drive. I was wondering if it's possible to relocate /tmp to 
other media ramdisk, tmpfs, or the like?
Thanks.
Dave.