So your colleague created a vApp and you can't see or use it? You can use the sharing option to share vApps with other users or groups.
We need one or more vApps as well as two users. The users can be local users or LDAP users, and one must at least be a vApp Author.
Navigate to your organization.
Right-click on the vApp you would like to share and select Share.
The properties of the vApp open up on the Share page.
Now click on Add Members.
You can now share this vApp with everyone in this organization or just a specific group or user. Take note that there is a search field.
Choose the Access Level option you want to give this user, as shown in the following screenshot:
Click on OK.
You can still change the access level of the user or group.
Click on OK to close the properties' window.
Now log in as the other user. You should now see and have access to the vApp: