Hi. Welcome to Android Forums
Yes, there are SMS apps you can use such as this one Handcent SMS
or GO SMS Pro
but for go SMS pro you need to download Go launcher Ex. And for voice, there's this. Google Voice
As for not getting pics it could be with the signal strength out there.
If you have anymore questions or need any help please feel free to ask. Follow this link to our phones section, and pick the type of droid you own from the list and head on over to it's area of support to get the best answers there about your device, as well as troubleshooting and helpful tips. Enjoy the forums.