diff --git a/bin/installer.sh b/bin/installer.sh
index 4e6fa09..6823a80 100755
--- a/bin/installer.sh
+++ b/bin/installer.sh
@@ -9,13 +9,24 @@ EEE
   exit 1;
 fi
 
-. $(dirname $(readlink -f $0))/../lib/installer_common;
+appRoot=$(readlink -f $(dirname $(readlink -f $0))/.. );
+. "$appRoot/lib/installer_common";
 
 printPackages(){
   cd $appDir/installer-scripts/packages;
   ls;
 }
 
+updateSelf(){
+  $0 --install self;
+}
+
+installPackage(){
+  packageName=$2;
+  . "$appRoot/packages/$packageName";
+  mainInstaller;
+}
+
 case $1 in
   --update)
     updateSelf;
diff --git a/lib/installer_common b/lib/installer_common
index 8249a5f..0dc8187 100644
--- a/lib/installer_common
+++ b/lib/installer_common
@@ -29,13 +29,6 @@ doInstall(){
   mv "$appName" "$installationPath";
 }
 
-mainInstaller(){
-  checkPaths;
-  performDownloads;
-  doInstall;
-  updateBinLinks;
-}
-
 updateBinLinks(){
   cd $localBinDir;
   for i in $(find "$appDir" -name 'binaries.lst'); do
@@ -45,4 +38,9 @@ updateBinLinks(){
   done;
 }
 
-
+mainInstaller(){
+  checkPaths;
+  performDownloads;
+  doInstall;
+  updateBinLinks;
+}
diff --git a/packages/nodejs b/packages/nodejs
index 7f961a1..4be25ee 100755
--- a/packages/nodejs
+++ b/packages/nodejs
@@ -1,6 +1,3 @@
-#!/usr/bin/env bash
-
-. $(dirname $(readlink -f $0))/installer_common;
 export appName='node-v0.12.7-linux-x64';
 export installationPath="$appDir/$appName";
 
@@ -15,4 +12,3 @@ installPack(){
 }
 
 
-mainInstaller;
diff --git a/packages/self b/packages/self
index e3fce74..e57c77e 100755
--- a/packages/self
+++ b/packages/self
@@ -1,10 +1,8 @@
-#!/usr/bin/env bash
-
 export appName='installer-scripts';
 export installationPath="$appDir/$appName";
 
 downloadPack(){
-  wget -c 'https://github.com/harish2704/installer-scripts/archive/master.zip';
+  wget 'https://github.com/harish2704/installer-scripts/archive/master.zip';
 }
 
 installPack(){
@@ -15,5 +13,3 @@ installPack(){
   touch 'binaries.lst';
 }
 
-
-mainInstaller;