I use joomla 1.0.15 with artio SEF, category not display in front end.
Not compatible with artio SEF?

JV-BE is not fully compatible with Artio JoomSEF.

so does this mean jv-linkexchanger does not work AT ALL - with sites using Artio?

Dear x126,

We develop extensions for Joomla and develop additional files like modules and plugins and special plugins as required.

Artio JoomSEF is a SEF URL extension for Joomla like many other SEF URL extensions for Joomla. For an extension to generate SEF URLs using JoomSEF, a separate advanced sef file needs to be written and installed. We do not have one for JoomSEF for JV-LE. Thats what i mean by "not compatible". But we do provide one for JV-LD for JoomSEF.

JV-LE is a free product. If you are particular about the JV-LE plugin for JoomSEF, then we can create one for you, but we are unable to commit the dates now, as we are already working on native mode compatibility for JV-LE, which will not require any SEF component at all! It will be able to generate SEF URLs on its own.

Or you can contact JoomSEF site to check if they have the plugin for JV-LE. If it is urgent, we can develop that plugin on a higher priority for you for a reasonable fee.