Are you still using a website with an old Joomla! CMS version?
I offer here my service in updating (update service) of the Joomla! CMS within an existing version.
I offer here my service in migration (upgrade service) of the Joomla! CMS to the latest version.
Using an old version of Joomla (1.5 or 2.5) is dangerous and sooner or later will probably lead to a malfunctioning website and annoying infection and possible website shutdown.
Migrating a website from an old Joomla is often a complex and lengthy process.
Especially if you need to migrate content from Joomla 1.0 or 1.5.
In such cases, the differences in the structure of the databases between the old version and the current one are so great that a step-by-step migration is necessary (e.g. from 1.xxx to 2.xxx and finally to 3.xxx, Joomla CMS 4.xxx).
In most cases it is also necessary to find contemporary equivalents for old components or modules and migrate their contents separately.