which plugin should i install to use these XML-RPC methods

Question

Can any one tell me which plugin should i install to access these XML-RPC methods,

  // - Demo
    0115
                    'demo.sayHello'         => 'this:sayHello',
    0116
                    'demo.addTwoNumbers'    => 'this:addTwoNumbers',
    0117
                    // - Forums
    0118
                    'bb.getForumCount'      => 'this:bb_getForumCount',
    0119
                    'bb.getForums'          => 'this:bb_getForums',
    0120
                    'bb.getForum'           => 'this:bb_getForum',
    0121
                    'bb.newForum'           => 'this:bb_newForum',
    0122
                    'bb.editForum'          => 'this:bb_editForum',
    0123
                    'bb.deleteForum'        => 'this:bb_deleteForum',
    0124
                    // - Topics
    0125
                    'bb.getTopicCount'      => 'this:bb_getTopicCount',
    0126
                    'bb.getTopics'          => 'this:bb_getTopics',
    0127
                    'bb.getTopic'           => 'this:bb_getTopic',
    0128
                    'bb.newTopic'           => 'this:bb_newTopic',
    0129
                    'bb.editTopic'          => 'this:bb_editTopic',
    0130
                    'bb.deleteTopic'        => 'this:bb_deleteTopic',        // Also undeletes
    0131
                    'bb.moveTopic'          => 'this:bb_moveTopic',
    0132
                    'bb.stickTopic'         => 'this:bb_stickTopic',         // Also unsticks
    0133
                    'bb.closeTopic'         => 'this:bb_closeTopic',         // Also opens
    0134
                    'bb.getTopicStatusList' => 'this:bb_getTopicStatusList',
    0135
                    // - Posts (replies)
    0136
                    'bb.getPostCount'      => 'this:bb_getPostCount',
    0137
                    'bb.getPosts'          => 'this:bb_getPosts',
    0138
                    'bb.getPost'           => 'this:bb_getPost',
    0139
                    'bb.newPost'           => 'this:bb_newPost',
    0140
                    'bb.editPost'          => 'this:bb_editPost',
    0141
                    'bb.deletePost'        => 'this:bb_deletePost',          // Also undeletes
    0142
                    'bb.getPostStatusList' => 'this:bb_getPostStatusList',
    0143
                    // - Topic Tags
    0144
                    'bb.getHotTopicTags'   => 'this:bb_getHotTopicTags',
    0145
                    'bb.getTopicTagCount'  => 'this:bb_getTopicTagCount',
    0146
                    'bb.getTopicTags'      => 'this:bb_getTopicTags',
    0147
                    'bb.getTopicTag'       => 'this:bb_getTopicTag',
    0148
                    'bb.addTopicTags'      => 'this:bb_addTopicTags',
    0149
                    'bb.removeTopicTags'   => 'this:bb_removeTopicTags',
    0150
                    'bb.renameTopicTag'    => 'this:bb_renameTopicTag',
    0151
                    'bb.mergeTopicTags'    => 'this:bb_mergeTopicTags',
    0152
                    'bb.destroyTopicTag'   => 'this:bb_destroyTopicTag',
    0153
                    // - Options
    0154
                    'bb.getOptions'        => 'this:bb_getOptions',
    0155
                    'bb.setOptions'        => 'this:bb_setOptions'

i have installed pppress plugin but when i called bb.getPosts from my iphone app , i got this error

faultCode = "-32601";
faultString = "server error. requested method bb.getPosts does not exist.";