Android move to sdcard fetaure

i have found that the move to sdcard feature is available in from 2.2 only, my problem is my os version is 2.1 ,but when it installing in 2.2 i need to enable the feature ,how can i do this, i have found that the 'Installation location attribute is availa开发者_开发问答ble in 2.2'.

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1) Update your SDK to at least "SDK Platform Android 2.1-update1, API 7, revision 2"

2) In the application.manifest file insert the line

<uses-sdk android:minSdkVersion="7"></uses-sdk>