Hi,
The VM redirect plugin can only work after the VirtueMart router has converted the SEF URLs of VirtueMart to non-SEF URLs.
Without it, the plugin cannot understand the SEF URLs as it doesn't even know if they belong to VirtueMart or not.
I don't know what you were previously using for the SEFing of VM URLs but you would need to have the same system back on your Joomla 3.x website if you want the plugin to work.
Alternatively, you could also modify the URLs dynamically with htaccess rules.
For example, you could change clock.html? to index.php?option=com_virtuemart&
That way, the URLs would be manually non-SEFed without the VirtueMart router and the VM redirect plugin would do the rest and redirect to the corresponding page in HikaShop.
That will require a bit if fiddling with the htaccess on your website:
www.google.com/search?q=htaccess+replace...10&es_sm=93&ie=UTF-8
Regarding the HikaShop backend toolbar, that is the normal size of the menu toolbar on Joomla 3.x as it uses the new styling of toolbars on Joomla 3.x
It should actually be below the button bar and that can be changed with the "menu position" option of the configuration.