YoVille will NEVER ask for your password, so please be wary of malicious emails and/or forum posts that request your password, including via web links.
Step 1. Copy that link. Step 2. Go to 'user control panel' at the top of this page. Step 3. Click under 'profile'. Step 4. Click under 'edit signature'. Step 5. Paste your apartment link into the box. Step 6. Click submit.