Features of v6.25

Don't know where you would get version 6.25 from as it has not been around for 2 to 3 years.

6.25 doesn't have any of the mentioned features but 7.9 does.

Also 7.9 offers much higher security and better performance than 6.25

upgrading can depend on what dataase version you are using.

if Access then you can use the migration tool.

if SQL you will have to search the forum on how to do so.

With the Access migration tool all you need to do is run the tool on the old and new databases to move the posts etc. across, this will take 5 to 15 minutes depending on database size and computer knowledge.

Then all you need to do is replace the old 6.25 files with the new ones.

With SQL Server it would take longer as you would need to alter the database to the 7.9 version by hand. How long this takes depends on your knowledeg of databases, it could take 30 minutes, or it could take you days.