Frostwire/iTunes Issues

I download a majority of my music from Frostwire and it has always worked. As soon as the song is finished downloading on Frostwire, it automatically transfers into my iTunes and all I have to do is drag it into my iPhone playlist and sync it. Yesterday I downloaded about 6 songs form FW and they smoothly transferred into my iTunes. They also played perfectly. When I drag it into my iPhone playlist, it goes in and it syncs normally. Then, they don't show up on my phone. I tried every way possible to get the songs into my phone and it just won't work. I tried looking up solutions online but it seems that my situation isn't common. I hit the iPhone tab > then i hit "On this iPhone" and I saw all the songs that i downloaded and a few others (purchased on iTunes) were greyed out. I can't delete them to try and re-download or anything. Please help I don't know what to do. I didn't want to call Apple because I feel they won't help me since this music wasn't purchased through iTunes.

I thought most people had grown smart enough to stop using Frost wire.besides Frost wire you also inexplicably say that you tried calling everything. How are total strangers like me supposed to know what everything was? How do we know what you tried or whether you did it the right way? I don't know how much if any of my following suggestion has already been done so I will try and make this simple:

Bring up sidebar.click on the iPod tab and go into the main iPod summary page. Make sure that the manual management box at the bottom is checked. If you recently updated iTunes but haven't restarted your computer, do so now.otherwise click on the music tab under the iPod tab.highlight the greyed out files and hjt delete. Then drag the music files from wherever they are and drag them to the iPod tab.

Then get rid if Frostwire. It really is a stupid way of getting music illegally.

Try resetting everything including itunes and your iphone and try again and that ahould help because I alao had same problem in the past.