[powerful_rogue]

Are you trying to execute this backup from phpMyAdmin or from within vBulletin?

If it's the former, I have justed tested the export function and it worked successfully - you just need to remember to compress the database in a zipped archive at export. If it's the latter, then vBulletin need to explain what it is that needs to be changed, as we cannot be expected to support the workings of their application.

However, judging by the error message you kindly supplied, I would guess that vBulletin requires a bigger PHP memory limit in order to run the backup function. It could be that vBulletin's backup function doesn't compress the database sufficiently or requires a large memory limit - you can increase PHP memory limit using php.ini.

In any event, executing the backup from phpMyAdmin works. If there are functions within vBulletin that are being limited by your current server configuration, please obtain details from vBulletin as to the necessary server requirements so that we can assist you in making the necessary changes. If you have any further questions, please don't hesitate to contact us.

With kind regards from Berlin

Above is the reply I got from my hosts.
I managed to download a backup via vbulletin where I can save to the pc, however if I try to use this mod, or use vbulletins feature and try to save to my webspace it comes back with the memory error.

Would increasing the PHP memory limit using php.ini help? If it would i'll get back in touch with them as I have no idea what it is!

Failing that, anything else I need to ask the hosts?

Thanks