hi i tried to install the loan module in v7.0.
I make editing on the xml ,py file for the enabling the version compactibility of the module.. 
when i click on the install button the following error will be displayed..
OpenERP Server Error
Client Traceback (most recent call last):
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\openerp\addons\web\http.py", line 204, in dispatch
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\openerp\addons\web\controllers\main.py", line 1133, in call_button
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\openerp\addons\web\controllers\main.py", line 1121, in _call_kw
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\openerp\addons\web\session.py", line 43, in proxy
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\openerp\addons\web\session.py", line 31, in proxy_method
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\openerp\addons\web\session.py", line 104, in send
Server Traceback (most recent call last):
File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\openerp\addons\web\session.py", line 90, in send
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\netsvc.py", line 293, in dispatch_rpc
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\service\web_services.py", line 626, in dispatch
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\osv\osv.py", line 188, in execute_kw
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\osv\osv.py", line 131, in wrapper
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\osv\osv.py", line 197, in execute
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\osv\osv.py", line 185, in execute_cr
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\openerp\addons\base\module\module.py", line 424, in button_immediate_install
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\openerp\addons\base\module\module.py", line 475, in _button_immediate_function
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\pooler.py", line 39, in restart_pool
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\modules\registry.py", line 218, in new
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\modules\loading.py", line 345, in load_modules
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\modules\loading.py", line 256, in load_marked_modules
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\modules\loading.py", line 159, in load_module_graph
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\modules\module.py", line 405, in load_openerp_module
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\.\openerp\modules\module.py", line 133, in load_module
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\openerp\addons\loan\__init__.py", line 6, in <module>
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\openerp\addons\loan\wizard\__init__.py", line 22, in <module>
  File "C:\Program Files\OpenERP 7.0-20130509-231040\Server\server\openerp\addons\loan\wizard\wizard_cheque_state_process.py", line 23, in <module>
ImportError: No module named wizard.
i change "class wizard_class(wizard.interface):" to "class wizard_class(osv.TransientModel):" .
please help me for finding the solutions..
