To install TrendyTools on InterWorx all you need to do is the following:
curl -O http://www.trendyflashdownload.com/installer/interworx/trendytools.sh
chmod 755 trendytools.sh
./trendytools.sh
Then go to NodeWorx > Plugins > Trendy Tools > Edit > Enable and your License Key.
You can get this from your TrendyTools license provider or from TrendyTools website: Login and click Step 2.