Why do you use scorm 1.2? what about 2004?
In slk 1.2 have some limitation, for example in table ActivityAttemptItem in xml column not recorded questions and answers.
This result we get after created scorm package 1.2 in iSpring 1.6. but with russian character in process of browsing course in slk all was ok.
What ver. SLK do you use?
Sharepoint Foundation 2010, SQLExpress 2008 and slk 1.5.2
Microsoft Learning Contant Development System support only scorm 1.2. I have not tried to use other tools for this moment. I will check iSpring today.