The search question was answered for me by boxerblues through this link: How to use the new search. Thanks, boxerblues!
Other than using this method, the only other way I can think to search a user's poster history is to search their posts from their profile/home page, following the "In Forum" link, which so far is still there. The URL has merely been renamed... http://www.freerepublic.com/tag/posts-by:loboinok/
Your welcome....its going to be mass confusion for a while till we figure everything out again, but we are Freepers,we may not like it at first but can handle it.
Thank you cgk. That helped.