Dual monitor for 2.2GHz MacBook Pro (MD318LL/A) Late 2011 MBP
Never tried with Thunderbolt splitting, but regularly run with multiple monitors. Using other methods.

Assume you meant to ad this link to question?

How to connect two non-Thunderbolt displays to the Macbook Pro 2011 via Thunderbolt?

From Documentation looks like your Mac only has one Thunderbolt port that also doubles as the display out.   Officially it supports 2 Displays per Thunderbolt port

Nothing that I can see in Apple Store but Found something that should work.   Note I do not have personal experience with this product.

http://www.amazon.co.uk/Zotac-ZT-MDP2HD-Mini-Dual-Cable/dp/B005FSHHHG/ref=sr_1_1?s=computers&amp;ie=UTF8&amp;qid=1349690750&amp;sr=1-1