easyC V2.8.0.1 does not require V1.1 to be installed. V2.8.0.1 is the current version shipping with all the programming modules.
There are a couple of things you can do:
Open a new project and select the Compile Project icon. You should get a message "The project was compiled successfully". Do you still get linking errors?
If you still have linking errors, try reinstalling the software. Maybe the compiler did not install correctly.
If you downloaded the install, try downloading it again. Maybe the download was corrupted?
Check out the Getting Started section of the easyC help file. The are several steps you can walk through to test easyC and the programming module. This will help pinpoint the problem.
If you are still having trouble, email us
support@intelitek.com.
Thanks