Кстати, заметила, что этот вопрос в справке на русский не переведен.
Но смысл тот, что искать можно или по названию поста, или покопаться в Календаре, если примерно помнишь, когда постила искомое. Если ищешь через Feedster (иконка с лупой в твоем юзер-инфо), подзамочные посты не просматриваются.
LiveJournal does not have a way of searching entries in a journal. However, the month view of a journal (http://www.livejournal.com/users/exa...rname/yyyy/mm/) will display all entries made in that journal in that month, listing them by date/time and by the subject line of the entry. If you remember the subject line used for the entry you are searching for, you can use this method to find the entry.
If you remember the approximate date of the entry you are looking for, you can use the Day view of the journal (http://www.livejournal.com/users/exa...me/yyyy/mm/dd/) to view all entries made on that day. Most styles provide a way of going to the next or previous day.
Both of these views can also be accessed through the Calendar or Archive for that journal.