If you are looking to trade points with another member, you can do one transfer (in or out, not both) per Use Year per membership. You have four contracts but only one membership. The transfer limit is per UY not calendar year so you could trade out your BLT points from your 2009 UY and trade in SSR points into your 2008 UY assuming you are still in your 2008 UY and that works for your travel dates. You should be able to bank the SSR points you transfer in so you could use them in your 2009 UY as well.
SSR is probably the easiest resort to book so unless you have a timing problem (for example, you want to book SSR before you are legally allowed to use your BLT points) you could take your chances at the 7-month window at SSR.
Another option is to book reciprocal reservations with another member. They book something for you at SSR and you book something for them at BLT.