need advise: searchlogic & pagination

hi,

im using searchlogic, but cant get pagination running. it telling me:
#i did install will_paginate (plugin), searchlogic as gem

undefined local variable or method `per_page_select' for

29:
30: <%= render @jobs %>
31:
32: <%= per_page_select %>
33:

2nd: question:

im running that in a custom action with custom route, eg:

:3000/test/basicsearch

>> def basicsearch .... end

how can i prevent that the search gets executed only after the user prsses the search button? something like params.blank?

thx
tom