Upgrade to Joomla 2.5

Hi,

I want to migrate my page from jjomla 1.5 to 2.5. I use Hot- Architecture as template. are there the same modules on the new template? are they in the same positions. is miogration any problem? I migrated my page, but missing the template and no Menu visible. logical- because Hot- Tempaltes uses other modules then oter templates. so my questions: can I use the new Template without a lot of problems or do I have to change all Moduls? I placed a lot of modules on differet places on the site, so there would be a lot of work in it.
does the new Template work with Jomres?
thanks for your answer,

Volker

We have 2.5 ready versions (templates+modules).

Some of non joomla core modules will not work unless you modify them (you can find guide on internet) , but again there are 2.5 ready modules.

About Joomres we don't know what is that.