@morrisondon & @ brianpurkiss you guys may have found this already but for someone new maybe it will still be relevant.
If you get this error:
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /{your local server path}/wp-content/plugins/twitter-tools/twitteroauth.php on line 19
It has been reported to a PHP4 issue and upgrading to PHP5 will fix it. I have found also that while your host may list PHP5 as available/installed some host (Lunarpages for example) are running PHP4/PHP5 both and you need to verify your .php files are being processed under PHP5.
For Lunarpages customers this can be done by logging into cPanel and choosing the "PHP Configuration" near the bottom. Make sure to choose "PHP 5" in the drop-down box on the resulting page (mine was set to "System Default").
If your host is unwilling/unable to upgrade to PHP5 I would recommend finding a new host. FWIW, I have over all been happy with Lunarpages YMMV.