1) HMWP version like 4.511 is not valid number for plugin updater. So for thos version manual update is required.
2) builtwith.com seems to be detecting some plugins but not wordpress. I’ve set “rename plugins” option to “all plugins” in HMWP permalinks & urls tab. The plugins name should not be detected now, except facebook likebox (we need to find solution to this, most probably in upcoming versions of HMWP)