Answer 3
Hi tripple9,
What permission does your colleague have?
Open the site with site administrator in SPD, navigate to the workflows folder, right click it, then select properties, click security, then click manage permissions
using the browser, make sure your workflow inherit permission from its parent. If not, inherit permission from its parent. Then add yourself design permission on the parent site, check the effect.
For more information about permission, please refer to the following article:
Manage permission levels
http://office.microsoft.com/en-us/windows-sharepoint-services-help/manage-permission-levels-HA010100143.aspx?