USB booting :: RealPlayer

I have installed gtk2.dsl by clicking on MyDSL in emelfm, then installed RealPlayer10 to /opt/RealPlayer10GOLD by doing ./RealPlayer10GOLD.bin (after making it executable). Then I run realplay in /opt/RealPlayer10GOLD and after this I can click a realplayer link in Firefox and RealPlayer plays it

The question is what to do so that RealPlayer is active next time I boot DSL.

I have added opt/RealPlayer10GOLD to filetool.lst but it seems that first I have to run "Update to GTK2" in the MyDSL menu before RealPlayer can run. How can I keep the updated GTK2?