All applications that you have purchased and appear in your transactions as 'Completed' can be found in your StorageLocker for re-downloading.
You can only access your StorageLocker from your Android device using the installed SlideME Market (SAM) app.
How to find StorageLocker:
Note: You can find the SAM version number from SAM > Help screen (only for versions 4.x)
For versions 5 and above, you can find the version number from SAM > About screen.
Log in with your SlideME credentials and you will see all the applications you have purchased. You can download them again for no extra charge.
For transactions that have a Received status, such applications are pending Collection from StorageLocker.
More info on the SlideME Market (SAM) application can be found from this link,
and can be downloaded anytime by entering this URL "http://slideme.org/sam.apk" in your devices browser.