diff --git a/Library/Homebrew/bottles.rb b/Library/Homebrew/bottles.rb
index 739f601c5b..0cd1f7bf23 100644
--- a/Library/Homebrew/bottles.rb
+++ b/Library/Homebrew/bottles.rb
@@ -5,8 +5,7 @@ def bottle_filename f, bottle_version=nil
   name = f.name.downcase
   version = f.version || f.standard.detect_version
   bottle_version = bottle_version || f.bottle_version
-  bottle_version_tag = bottle_version > 0 ? "-#{bottle_version}" : ""
-  "#{name}-#{version}#{bottle_version_tag}#{bottle_native_suffix}"
+  "#{name}-#{version}#{bottle_native_suffix(bottle_version)}"
 end
 
 def bottles_supported?
@@ -15,7 +14,7 @@ end
 
 def install_bottle? f
   return true if ARGV.include? '--install-bottle'
-  !ARGV.build_from_source? && bottle_current?(f)
+  not ARGV.build_from_source? && bottle_current?(f)
 end
 
 def built_bottle? f
@@ -23,6 +22,8 @@ def built_bottle? f
 end
 
 def bottle_current? f
+  puts Pathname.new(f.bottle_url).version
+  puts f.version
   f.bottle_url && f.bottle_sha1 && Pathname.new(f.bottle_url).version == f.version
 end
 
@@ -31,24 +32,25 @@ def bottle_new_version f
   f.bottle_version + 1
 end
 
-def bottle_native_suffix
-  ".#{MacOS.cat}#{bottle_suffix}"
+def bottle_native_suffix version=nil
+  ".#{MacOS.cat}#{bottle_suffix(version)}"
 end
 
-def bottle_suffix
-  ".bottle.tar.gz"
+def bottle_suffix version=nil
+  version = version.to_i > 0 ? ".#{version}" : ""
+  ".bottle#{version}.tar.gz"
 end
 
 def bottle_native_regex
-  /((-\d+)?\.#{MacOS.cat}\.bottle\.tar\.gz)$/
+  /(\.#{MacOS.cat}\.bottle\.((\d+)?\.tar\.gz))$/
 end
 
 def bottle_regex
-  /((-\d+)?\.[a-z]+\.bottle\.tar\.gz)$/
+  /(\.[a-z]+\.bottle\.(\d+\.)?tar\.gz)$/
 end
 
 def old_bottle_regex
-  /(-bottle\.tar\.gz)$/
+  /((\.[a-z]+)?[\.-]bottle\.tar\.gz)$/
 end
 
 def bottle_base_url
diff --git a/Library/Homebrew/download_strategy.rb b/Library/Homebrew/download_strategy.rb
index 4c510db992..3a68a25417 100644
--- a/Library/Homebrew/download_strategy.rb
+++ b/Library/Homebrew/download_strategy.rb
@@ -194,8 +194,10 @@ class CurlBottleDownloadStrategy < CurlDownloadStrategy
     @tarball_path = HOMEBREW_CACHE/"#{name}-#{version}#{ext}"
 
     unless @tarball_path.exist?
+      # Stop people redownloading bottles just because I (Mike) was stupid.
       old_bottle_path = HOMEBREW_CACHE/"#{name}-#{version}-bottle.tar.gz"
       old_bottle_path = HOMEBREW_CACHE/"#{name}-#{version}.#{MacOS.cat}.bottle-bottle.tar.gz" unless old_bottle_path.exist?
+      old_bottle_path = HOMEBREW_CACHE/"#{name}-#{version}-7.#{MacOS.cat}.bottle.tar.gz" unless old_bottle_path.exist? or name != "imagemagick"
       FileUtils.mv old_bottle_path, @tarball_path if old_bottle_path.exist?
     end
   end
diff --git a/Library/Homebrew/extend/pathname.rb b/Library/Homebrew/extend/pathname.rb
index 454afb0747..d705bc2f95 100644
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@@ -119,7 +119,6 @@ class Pathname
   # extended to support common double extensions
   def extname
     return $1 if to_s =~ bottle_regex
-    # old brew bottle style
     return $1 if to_s =~ old_bottle_regex
     /(\.(tar|cpio)\.(gz|bz2|xz|Z))$/.match to_s
     return $1 if $1
diff --git a/Library/Homebrew/test/test_versions.rb b/Library/Homebrew/test/test_versions.rb
index 44058b70a0..4c9b700458 100644
--- a/Library/Homebrew/test/test_versions.rb
+++ b/Library/Homebrew/test/test_versions.rb
@@ -169,6 +169,11 @@ class VersionTests < Test::Unit::TestCase
       '4.8.0'
   end
 
+  def test_versioned_bottle_style
+    check 'https://downloads.sf.net/project/machomebrew/Bottles/qt-4.8.1.lion.bottle.1.tar.gz',
+      '4.8.1'
+  end
+
   def test_erlang_bottle_style
     check 'https://downloads.sf.net/project/machomebrew/Bottles/erlang-R15B.lion.bottle.tar.gz',
       'R15B'
@@ -184,9 +189,19 @@ class VersionTests < Test::Unit::TestCase
       'R15B'
   end
 
+  def test_imagemagick_style
+    check 'http://downloads.sf.net/project/machomebrew/mirror/ImageMagick-6.7.5-7.tar.bz2',
+      '6.7.5-7'
+  end
+
   def test_imagemagick_bottle_style
-    check 'http://downloads.sf.net/project/machomebrew/Bottles/imagemagick-6.7.1-1-bottle.tar.gz',
-      '6.7.1-1'
+    check 'https://downloads.sf.net/project/machomebrew/Bottles/imagemagick-6.7.5-7.lion.bottle.tar.gz',
+      '6.7.5-7'
+  end
+
+  def test_imagemagick_versioned_bottle_style
+    check 'https://downloads.sf.net/project/machomebrew/Bottles/imagemagick-6.7.5-7.lion.bottle.1.tar.gz',
+      '6.7.5-7'
   end
 
   def test_dash_version_dash_style