Update problem with Android Developers Console

I recently signed and published my game in the Android Developers Console and I'm having problems updating the apk file. I created a new VersionCode and a new Version name in my Android Manifest but when I upload the new file it spits an error message "there's already a Version 1 file" even though I changed the Manifest Version Code "2" and the VersionName"1.1" I've deactivated and unpublished it and I am still unable to upload the updated apk. file. I changed my keystore file and changed the name of the apk file and it just won't upload with out giving the same error "there's already a VersionCode 1 file."

I'm working on Windows 7, Unity 3.2 ,downloaded APIs for minSDK 2.1 -2. 3.3

Does anybody know how to "update" a published apk on the Android Developers Console?

thanx for your help!

manifest script

     <?xml version="1.0" encoding="utf-8"?>
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.unity3d.player"
     android:installLocation="preferExternal"
     android:versionCode="2"
     android:versionName="1.1">
     <supports-screens
         android:smallScreens="true"
         android:normalScreens="true"
         android:largeScreens="true"
         android:xlargeScreens="true"
         android:anyDensity="true"/>
     <uses-sdk android:minSdkVersion="7" />
     
     <application
         android:icon="@drawable/app_icon"
         android:label="@string/app_name"
         android:debuggable="false">
         <activity android:name="com.unity3d.player.UnityPlayerActivity"
                   android:label="@string/app_name"
                   android:configChanges="keyboard|keyboardHidden|orientation">
                 <intent-filter>
                     <action android:name="android.intent.action.MAIN" />
                     <category android:name="android.intent.category.LAUNCHER" />
                 </intent-filter>
         </activity>
         <activity android:name="com.unity3d.player.VideoPlayer"
                   android:label="@string/app_name"
                   android:configChanges="keyboard|keyboardHidden|orientation">
         </activity>
 
 
             <!-- ACTIVITIES -->
         <activity android:name="com.prime31.EtceteraProxyActivity"></activity>
         <activity android:name="com.prime31.WebViewActivity" android:configChanges="orientation"></activity>
         <activity android:name="com.prime31.P31VideoPlayerActivity" android:configChanges="keyboard|keyboardHidden|orientation"></activity>
 
             <!-- META-DATA -->
 
         </application>
 
         <!-- PERMISSIONS -->
 </manifest>