TSID is a free project covered by GPL
license, so you may want to help in his develop.
The project is placed at
Sourceforge (sourceforge.net/projects/tsid), so you can helping by looking at Sourceforge site.
There are many features to be added, so your help is welcome.
Next version of TSID may have:
bugs fix
However, the TSID2 library need lot of work for being very stable.
SID
Ice Team Free Software Group