transferring apps onto iPhone 4

[BettyNoir]

I've had an iPhone 4, having had the iPhone 3GS previously. All of my muic, photos, messages etc have transferred over to my new phone no problem when i synced it. However, I can't get any of my apps (purchased or free) to go onto the phone. I've read tt you should authorise your computer to work with the phone, which I've done, and then it should be 'simple' matter of right clicking on my phone icon when it's plugged in and choosing to transfer all purchases to the phone, but that hasn't worked either. where am I going wrong?!

Thanks
B

[Milvus]

When you sync your iphone, click on your iphone in iTunes under DEVICES and make sure that under Apps in the menu that you have ticked Sync Apps.