shorter and seo friendly url

hello mate,

Currently i am using this plugin to my hosting website. So far its integrated great !

But, the client area URL is so big and messy !

Any chance can i make it shorter and SEO friendly ?

currently, its coming like - http://www.dhakawebhost.com/client-area/?whmcsportal%5Bpage%5D=whmcs%3A%2F%2Fwww.client.dhakawebhost.com%2Fannouncements.php

can you please suggest me how can i make it ? or any tutorial ?

Cheers...