Bug in my shell script

["Jasper Jans" <jjans bio vu nl>]

Hi..

I'm trying to write a shell script but for some reason I cannot
get it to work.. can anyone be so good to tell me what is going
wrong here?

---
#!/bin/sh -x

if [ $# -eq 0 ]; then
        echo "Usage: $0 <expression>";
        exit;
fi

echo "find /home/guests/jjans -type d -name '*"$1"*' -exec 'sed s/*.sts//g'
\;" | sh
---

I call this like: ./bla.sh roje
And the find part (if I run that seperately) returns lines like:
/home/guests/jjans/Projects/A
/home/guests/jjans/Projects/B
etc..

The sed part is support to strip of the /home/guests part and make it
such that the output is
/jjans/Projects/A
/jjans/Projects/B
etc..

However when I run this I get absolutely no output at all..
Anyone?

Thanks,
J.