Plugin Disable Change User Name released. 
Do you support Mambo powered sites or can you help to migrate?
We do no longer provide service to Mambo powered sites as per 1st July 2009. Joomla is simply a better product so we do advise you to upgrade to Joomla! You can request a free quote to migrate from Mambo! This is in principle not difficult at all and depends mostly on the Extensions being used whether they can be reused with Joomla or that replacements are needed. Replacements and upgrades of Extensions are not part of our GWS-Desk Mambo Migration Package but can be performed after analysis and subsequenly agreement on fees for our efforts.
Joomla’s flexibility and ease of usage makes it a popular CMS, which has resulted in a vast community and tons of extensions, only imagination can restrict the use of Joomla. Then why is Joomla sometimes operating with less speed than expected or slow? Joomla itself is not slow, one needs to tweak settings and use the available inbuilt options to boost up performance. Its up to the user to get the maximum out of joomla by tweaking settings and optimizing Joomla framework. Default Joomla has lot of potential to be optimized for speed and performance.
Often people require just a some specific support or just general support in finishing a project or purchase support valid for multiple sites. GWS-Desk provides this ad-hoc support on non Joomla core issues where needed. This relates for example to 3rd party software, extension setups and upgrades, etc. This is practical if you do not wish to purchase a support package but need a one-off assist.