Hi krazykat913,
Let's see what we can do to get things working for you. For starters, you can download the free Adobe Reader to fill out the PDF form (no need to convert to Word). You can get the free Reader from www.adobe.com/products/reader.html.
As for the conversion errors, it would be helpful to know exactly what the error message is so we know how best to proceed.
I look forward to hearing back from you.
Best,
Sara