Bootcamp Assistant not showing SSD

Hi,

I have a 2009 Mac Pro and I had Windows 7 installed with Bootcamp on my 1tb HDD, worked fine, no problems.

I installed a new SSD (260gb) and have been booting into OSX off that for the last few months, again no problems, nice and fast.

However, I was still booting into Windows on the old HDD, still slow, so I decided I'd partition the new SSD with Bootcamp and install a fresh Windows 7 on that.

So I removed the old Bootcamp partition, and thus Windows, from the HDD (it's now back to an unpartitioned 1tb, going to be used for storage).

Then I went Bootcamp Assistant, chose the 'Install Windows 7 or later version' option, hit continue and was then given the option to choose the partition size... on the old HDD. The SSD doesn't show up at all. I'm running the Bootcamp Assistant in the OSX that has booted on the SSD.

Anyone got any ideas how I can get Bootcamp to partition and install Windows on my SSD, not the old HDD?

Any help would be great!