'search_pattern' => '/http:\/\/(?:www\.)?vk\.com\/video_ext\.php\?oid=([A-Za-z0-9]+)&id=([A-Za-z0-9]+)&hash=([A-Za-z0-9]+)/',
removes the invalid video ID message.
Unfortunately the vk.com player needs some more parameters to play the video:
<param name="flashvars" value="uid=164681391&vid=162151261&oid=164681391&host=http://cs505420v4.vk.me/&vtag=3db79b5d6d&ltag=l_6b169856&vkid=162151261&md_title=%26lt%3Biframe+src%3D%22http%3A%2F%2Fvk.com%2Fvideo_ext.php%3Foid%3D7324586%26id%3D162001297%26hash%3Db7d57fd756ecf0d3%26sd%22+width%3D%26quot&md_author=Elena+Rotsel&author_id=164681391&author_href=/id164681391&hd=0&no_flv=1&hd_def=0&dbg_on=0&t=0&duration=63&thumb=http://cs505420.vk.me/u164681391/video/l_6b169856.jpg&hash=6b3a8670eb0ed9db33fef5cd5dc3487f&hash2=45dcf38e51031b2f&angle=0&img_angle=0&repeat=0&show_ads_preroll=0&show_ads_postroll=0&show_ads_overlay=0&legal_owner=0&eid1=0&slot=0&g=0&a=0&puid34=0&water_mark=&can_rotate=1&c3=&no_adfox=1&ads_preview=0&puid4=0&url240=http://cs505420v4.vk.me/u164681391/videos/3db79b5d6d.240.mp4?extra=D0j3UO6n8dPwDgaNZXS5TbpsaynlgivH2y_L8viVqgfY7xW98I-99CNw08vomo0qwM7NyMTi3mmG4EjeM-J4qNC_IdjPOFI&jpg=http://cs505420.vk.me/u164681391/video/l_6b169856.jpg&ip_subm=1&video_ext=1&is_yandex=0&apm;&is_vk=1&is_ext=1&referrer=&lang_add=Add+to+My+Videos&lang_added=Video+added+to+My+Videos&lang_share=Share&lang_like=Like&lang_subscribe=Subscribe&lang_subscribed=You+have+subscribed&lang_volume_on=Unmute&lang_volume_off=Mute&lang_volume=Volume&lang_hdsd=Change+Video+Quality&lang_open_popup=Expand&lang_fullscreen=Full+Screen&lang_window=Minimize&lang_rotate=Rotate&lang_ads_link=Advertiser%27s+Site&lang_ads=Ads&lang_ads_skip=Skip+ad&lang_next=Next+video&lang_replay=Replay&lang_next_cancel=Cancel&lang_ads_skip_time=Skip+ads+in+%7Btime%7D&lang_report_problem=Report+a+problem..&video_play_hd=Watch+in+HD&video_stop_loading=Stop+Download&video_player_version=VK+Video+Player&goto_orig_video=Go+to+Video&video_get_video_code=Copy+video+code&video_load_error=The+video+has+not+uploaded+yet+or+the+server+is+not+available&video_get_current_url=Copy+frame+link"></param>
so the video player cannot be embedded directly in Coppermine, but needs an iframe. Please have a look how it has been solved for vine.