Update beta announcement and correct video links

Links to video for DConf 2014 incorrect. Update announcement to reflect availability of v2.066.0-b1.

index.dd

@@ -5,8 +5,8 @@ $(D_S D Programming Language,
 $(SECTION3 The D programming language. Modern
 convenience. Modeling power. Native efficiency.,
 
-$(P $(RED $(B Version 2.066 Goes Beta June 30.)))
-$(P Videos for DConf 2014 are available on $(LINK2 https://archive.org/search.php?query=creator%3A%22DConf%202014%22, archive.org).)
+$(P $(RED $(B $(LINK2 DMD v2.066.0-b1 now available for testing.))))
+$(P Videos for DConf 2014 are available on $(LINK2 https://archive.org/search.php?query=title%3A%28DConf%202014%29&sort=+publicdate, archive.org).)
 $(P Videos and slides for DConf 2013 are available on $(LINK2 http://dconf.org/2013/schedule/index.html, dconf.org).)
 $(BR)