maybe thats not important so I'm just mentioning it..
1)installed on a fresh joomla the 3.0.0 through joomla extension store (after that i did not install aio)
2)right then i noticed it was not the latest, so i uninstalled that and i got this error:
Warning: include(/.../administrator/components/com_virtuemart/install/uninstall.virtuemart.html.php): failed to open stream: No such file or directory in /.../administrator/components/com_virtuemart/install/script.virtuemart.php on line 758
Warning: include(): Failed opening '/.../administrator/components/com_virtuemart/install/uninstall.virtuemart.html.php' for inclusion (include_path='.:/usr/local/share/pear54') in /.../administrator/components/com_virtuemart/install/script.virtuemart.php on line 758
yeh, due the changes in the JED, we could not update it to the last version. Just in general, uninstalling in the joomla world is most time a bad idea. Unpublishing and similar should be done first.
In your case it would have been absolutly enough to use the built in updater, after download.
But I removed the wrong include, thanks for reporting.