I understand you're looking for a download link for the Application Loader Wizard for BlackBerry devices. However, it's important to clarify a few key points before providing a direct link.
You might ask: Is this effort worth it for a dead platform?
Assuming you want to use the safest method (Desktop Software v7.1), follow these steps: application loader wizard blackberry download link
Step 1: Go to Internet Archive (archive.org) and search exactly: "BlackBerry Desktop Software 7.1.0 B39"
Step 2: Download the .exe file from a result that has a high number of downloads and positive feedback. (Avoid any site asking for a credit card or “premium access”.) I understand you're looking for a download link
Step 3: Before running, right-click the file -> Properties -> check if it is “Blocked” (Windows may flag it). Click “Unblock”.
Step 4: Run the installer as Administrator. Do not change default installation paths. Source: CNET Download
Step 5: Once installed, connect your BlackBerry via USB. If drivers fail, install BlackBerry USB and Modem Drivers (also available on Archive.org).
Step 6: Launch BlackBerry Desktop Software. The Application Loader Wizard is located under:
Tools > Application Loader or Device > Update > Application Loader.