Problem in file (from flash 5 to flash 8)

1

[LEFT]I have file that I worked on it in flash 5, but when I open it in flash 8 some actions dosen’t work, and the program appear the error in the out put menu, honestly I didn’t know what can I do to make it harmonize with flash 8, can any one help my on it……
[/LEFT]
[FONT=&quot]Those actions for the ball gravity:[/FONT]

[LEFT]minX = 0;[/LEFT]
maxX = 10;minY = -2000;
maxY = 1000;gravity = .98;
friction = .85;
// ball action(distance)
if (_root.pausenum==0) { speed = 2;
me = “ballin”;
set(me add “/:yspeed”, eval(me add “/:yspeed”)+/:gravity1);
if (/:pause ne “ball”) { oldypos = getProperty(me, _y);
oldxpos = getProperty(me, _x); newypos = oldypos + eval(me add “/:yspeed”); newxpos = oldxpos + eval(me add “/:xspeed”);
Xtemp = Number((((newxpos-oldxpos)/(newypos-oldypos))(ykorb-oldypos)))+Number(oldxpos);
if ((Number(newypos)>Number(/:maxY)) or (Number(newypos)<Number(/:minY))) { newypos = oldypos; set(me add “/:yspeed”, (-1eval(me add “/:yspeed”))(/:friction));
set(me add “/:xspeed”, eval(me add “/:xspeed”)/:friction); }
if ((Number(newxpos)>Number(/:maxX)) or (Number(newxpos)<Number(/:minX))) { set(me add “/:xspeed”, (-1eval(me add “/:xspeed”))*(/:friction));
newxpos = oldxpos; } setProperty(me, _y, newypos);
setProperty(me, _x, newxpos); }}

The outputs:

Error Symbol=ball, layer=Layer 10, frame=1:Line 11: ‘)’ or ‘,’ expected set(me add “/:yspeed”, eval(me add “/:yspeed”)+/:gravity*1);
Error Symbol=ball, layer=Layer 10, frame=1:Line 12: Unexpected ‘/’ encountered if (/:pause ne “ball”) {
Error Symbol=ball, layer=Layer 10, frame=1:Line 15: ‘)’ or ‘,’ expected newypos = oldypos + eval(me add “/:yspeed”);
Error Symbol=ball, layer=Layer 10, frame=1:Line 16: ‘)’ or ‘,’ expected newxpos = oldxpos + eval(me add “/:xspeed”);
Error Symbol=Stop Watch, layer=Actions, frame=1:Line 43: Syntax error. atime[4] = “0” add atime[4];
Error Symbol=Stop Watch, layer=Actions, frame=1:Line 49: Syntax error. atime[2] = “0” add atime[2].toString();
Error Symbol=Stop Watch, layer=Actions, frame=1:Line 56: Syntax error. atime[0] = “0” add atime[0];
Total ActionScript Errors: 7 Reported Errors: 7