Addition of custom links on Project Details screen to update Project

Hi,

I request help to implement a customization in Ms Project Server 2010. I would like to add a custom link on lefthand side menu of Project Details page. The link would display a page with key fields. On entering information in the fields and clicking Submit, a custom code that triggers MS SharePoint 2010 workflow should be triggered.

The user triggering the workflow will only have read access to the Project. I would like to get technical information and code snippets to implement the requirement. Any help in this regard would be appreciated.