mod_write and question mark for GET

[Willem_ZA]

Hey guys

My problem is this:

I want a user to enter the following kind of URL:
[a href=\"http://www.mydomain.com/aa21\" target=\"_blank\"]http://www.mydomain.com/aa21[/a]
or
[a href=\"http://www.mydomain.com/sdw21\" target=\"_blank\"]http://www.mydomain.com/sdw21[/a]
or
[a href=\"http://www.mydomain.com/09kks\" target=\"_blank\"]http://www.mydomain.com/09kks[/a]
or anything similar (the part after the last slash references a record in my database.


I need the user to then be redirected to the following URL:
[a href=\"http://www.mydomain.com/catch.php?id=aa21\" target=\"_blank\"]http://www.mydomain.com/catch.php?id=aa21[/a]
or
[a href=\"http://www.mydomain.com/catch.php?id=sdw21\" target=\"_blank\"]http://www.mydomain.com/catch.php?id=sdw21[/a]
or
[a href=\"http://www.mydomain.com/catch.php?id=09kks\" target=\"_blank\"]http://www.mydomain.com/catch.php?id=09kks[/a]
or whatever, depending on the original URL they entered.


This is the contents of my .htaccess file (it's only 1 line long):
RedirectMatch temp ^/find/([A-Za-z0-9]+)$ /finder/test.php?id=$1


What happens is that when a user enters "http://www.mydomain.com/aa21", he gets redirected to "http://www.mydomain.com/catch.php%3fid=aa21"

Why is the question mark at the end of the intended URL changing into "%3f"?


Thanks!

Willem