older rails apps fail after gem update

i just upgraded gems to 0.9.2

after restarting the server, all of the previous apps break. checking
the logs reveals this for every actions:

ArgumentError (wrong number of arguments (1 for 0)):
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/vendor/mysql.rb:551:in `initialize'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/vendor/mysql.rb:551:in `new'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/vendor/mysql.rb:551:in `scramble41'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/vendor/mysql.rb:141:in `real_connect'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/connection_adapters/mysql_adapter.rb:331:in `connect'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/connection_adapters/mysql_adapter.rb:88:in `initialize'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/connection_adapters/mysql_adapter.rb:37:in `new'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/connection_adapters/mysql_adapter.rb:37:in
`mysql_connection'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/connection_adapters/abstract/connection_specification.rb:
251:in `send'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/connection_adapters/abstract/connection_specification.rb:
251:in `connection_without_query_cache='
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/query_cache.rb:54:in `connection='
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/connection_adapters/abstract/connection_specification.rb:
220:in `retrieve_connection'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/connection_adapters/abstract/connection_specification.rb:
78:in `connection'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/base.rb:1046:in `add_limit!'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/base.rb:1017:in `construct_finder_sql'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/base.rb:924:in `find_every'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/base.rb:918:in `find_initial'
    /usr/local/lib/ruby/gems/1.8/gems/activerecord-1.14.2/lib/
active_record/base.rb:380:in `find'
    /app/controllers/pages_controller.rb:4:in `index'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/
action_controller/base.rb:910:in `send'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/
action_controller/base.rb:910:in `perform_action_without_filters'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/
action_controller/filters.rb:368:in `perform_action_without_benchmark'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/
action_controller/benchmarking.rb:69:in
`perform_action_without_rescue'
    /usr/local/lib/ruby/1.8/benchmark.rb:293:in `measure'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/
action_controller/benchmarking.rb:69:in
`perform_action_without_rescue'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/
action_controller/rescue.rb:82:in `perform_action'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/
action_controller/base.rb:381:in `send'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/
action_controller/base.rb:381:in `process_without_filters'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/
action_controller/filters.rb:377:in
`process_without_session_management_support'
    /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.12.1/lib/
action_controller/session_management.rb:117:in `process'
    /usr/local/lib/ruby/gems/1.8/gems/rails-1.1.2/lib/dispatcher.rb:
38:in `dispatch'
    dispatch.cgi:10

any ideas? i'm having a panic attack right now trying to figure out
what's going on so any help would be greatly appreciated.

Hi --

In fact I'm virtually sure of it -- the line # difference can be
explained by different AR versions.

David

Thanks for the reply david.

Unfortunately i am still having problems. my host did update ruby to
1.8.6 last night, right now, i just want to get my older apps back up.
should i ask him to rollback the ruby version?

Hi --

did something change with the routing in the new version of rails?

after freezing rails to the app, nothing works that isn't on the first
page.