Linking to anchor tags with will_paginate in Rails 3.0.10
<%= will_paginate @posts, :params => {:anchor => i} %>

<%= link_to(i, subject_topic_path(@subject, @topic, :anchor => i), {:name => i}) %>

<%= link_to "Last Post Created:", subject_topic_path(s.subject, s, :anchor => s.posts.count)%>

<%= will_paginate @posts %>

<%= link_to "Last Post Created:", subject_topic_path(s.subject, s, :page => x, :anchor => s.posts.count)%>