[TYPO3] realUrl For my own Extension

[Nirmalya]

Hello,

I want to configure RealUrl for my own extension.

I've url like:
http://www.mywebSite.com/topPage/no_cache/subPage.html?tx_myextension_pi1%5Buid%5D=9

(in Browsers Status Bar:
http://www.mywebSite.com/topPage/no_cache/subPage.html?tx_myextension_pi1[uid]=9)

i've written realUrl for this like:
     'postVarSets' => array (
                'home' => array (
           array ('GETvar' => 'tx_vincent5erenting_pi1[uid]'),
         ),
             ),
but not succeed
To encode like:
http://www.mywebSite.com/topPage/no_cache/subPage/extension/9/
so any clue or help...why its not working..
-----------
thank you,
nirmalya